<informationTable xmlns="http://www.sec.gov/edgar/document/thirteenf/informationtable">		<infoTable>
			<nameOfIssuer>Akamai Technologies, Inc.</nameOfIssuer>
			<titleOfClass>COM</titleOfClass>
			<cusip>00971T101</cusip>
			<value>9657</value>
			<shrsOrPrnAmt>
				<sshPrnamt>136049</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>SOLE</investmentDiscretion>
			<otherManager>None</otherManager>
			<votingAuthority>
				<Sole>136049</Sole>
				<Shared>0</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>Apple, Inc.</nameOfIssuer>
			<titleOfClass>COM</titleOfClass>
			<cusip>037833100</cusip>
			<value>25533</value>
			<shrsOrPrnAmt>
				<sshPrnamt>152179</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>SOLE</investmentDiscretion>
			<otherManager>None</otherManager>
			<votingAuthority>
				<Sole>152179</Sole>
				<Shared>0</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>Baker Hughes Inc.</nameOfIssuer>
			<titleOfClass>COM</titleOfClass>
			<cusip>057224107</cusip>
			<value>3481</value>
			<shrsOrPrnAmt>
				<sshPrnamt>125337</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>SOLE</investmentDiscretion>
			<otherManager>None</otherManager>
			<votingAuthority>
				<Sole>125337</Sole>
				<Shared>0</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>Berkshire Hathaway</nameOfIssuer>
			<titleOfClass>CL B</titleOfClass>
			<cusip>084670207</cusip>
			<value>28565</value>
			<shrsOrPrnAmt>
				<sshPrnamt>143198</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>SOLE</investmentDiscretion>
			<otherManager>None</otherManager>
			<votingAuthority>
				<Sole>143198</Sole>
				<Shared>0</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>Boeing Company</nameOfIssuer>
			<titleOfClass>COM</titleOfClass>
			<cusip>097023105</cusip>
			<value>36442</value>
			<shrsOrPrnAmt>
				<sshPrnamt>111143</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>SOLE</investmentDiscretion>
			<otherManager>None</otherManager>
			<votingAuthority>
				<Sole>111143</Sole>
				<Shared>0</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>Cognizant Technologies Solu.</nameOfIssuer>
			<titleOfClass>CL A</titleOfClass>
			<cusip>192446102</cusip>
			<value>16330</value>
			<shrsOrPrnAmt>
				<sshPrnamt>202863</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>SOLE</investmentDiscretion>
			<otherManager>None</otherManager>
			<votingAuthority>
				<Sole>202863</Sole>
				<Shared>0</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>Dell Technologies</nameOfIssuer>
			<titleOfClass>COM CL V</titleOfClass>
			<cusip>24703L103</cusip>
			<value>12908</value>
			<shrsOrPrnAmt>
				<sshPrnamt>176309</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>SOLE</investmentDiscretion>
			<otherManager>None</otherManager>
			<votingAuthority>
				<Sole>176309</Sole>
				<Shared>0</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>EBAY Inc.</nameOfIssuer>
			<titleOfClass>COM</titleOfClass>
			<cusip>278642103</cusip>
			<value>6384</value>
			<shrsOrPrnAmt>
				<sshPrnamt>158653</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>SOLE</investmentDiscretion>
			<otherManager>None</otherManager>
			<votingAuthority>
				<Sole>158653</Sole>
				<Shared>0</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>Google Inc.</nameOfIssuer>
			<titleOfClass>CL C</titleOfClass>
			<cusip>38259P706</cusip>
			<value>115992</value>
			<shrsOrPrnAmt>
				<sshPrnamt>112418</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>SOLE</investmentDiscretion>
			<otherManager>None</otherManager>
			<votingAuthority>
				<Sole>112418</Sole>
				<Shared>0</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>Google Inc.</nameOfIssuer>
			<titleOfClass>CL A</titleOfClass>
			<cusip>38259P508</cusip>
			<value>15522</value>
			<shrsOrPrnAmt>
				<sshPrnamt>14966</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>SOLE</investmentDiscretion>
			<otherManager>None</otherManager>
			<votingAuthority>
				<Sole>14966</Sole>
				<Shared>0</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>KKR&amp;CO</nameOfIssuer>
			<titleOfClass>COM</titleOfClass>
			<cusip>48248M102</cusip>
			<value>5789</value>
			<shrsOrPrnAmt>
				<sshPrnamt>285179</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>SOLE</investmentDiscretion>
			<otherManager>None</otherManager>
			<votingAuthority>
				<Sole>285179</Sole>
				<Shared>0</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>Medtronic Inc.</nameOfIssuer>
			<titleOfClass>COM</titleOfClass>
			<cusip>585055106</cusip>
			<value>9532</value>
			<shrsOrPrnAmt>
				<sshPrnamt>118824</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>SOLE</investmentDiscretion>
			<otherManager>None</otherManager>
			<votingAuthority>
				<Sole>118824</Sole>
				<Shared>0</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>Nautilus</nameOfIssuer>
			<titleOfClass>COM</titleOfClass>
			<cusip>63910B102</cusip>
			<value>1590</value>
			<shrsOrPrnAmt>
				<sshPrnamt>118225</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>SOLE</investmentDiscretion>
			<otherManager>None</otherManager>
			<votingAuthority>
				<Sole>118225</Sole>
				<Shared>0</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>Novo Nordisk</nameOfIssuer>
			<titleOfClass>ADR</titleOfClass>
			<cusip>670100205</cusip>
			<value>10798</value>
			<shrsOrPrnAmt>
				<sshPrnamt>219255</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>SOLE</investmentDiscretion>
			<otherManager>None</otherManager>
			<votingAuthority>
				<Sole>219255</Sole>
				<Shared>0</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>Nvidia Inc.</nameOfIssuer>
			<titleOfClass>COM</titleOfClass>
			<cusip>67066G104</cusip>
			<value>12763</value>
			<shrsOrPrnAmt>
				<sshPrnamt>55110</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>SOLE</investmentDiscretion>
			<otherManager>None</otherManager>
			<votingAuthority>
				<Sole>55110</Sole>
				<Shared>0</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>Orbcomm, Inc.</nameOfIssuer>
			<titleOfClass>COM</titleOfClass>
			<cusip>68555p100</cusip>
			<value>23298</value>
			<shrsOrPrnAmt>
				<sshPrnamt>2486432</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>SOLE</investmentDiscretion>
			<otherManager>None</otherManager>
			<votingAuthority>
				<Sole>2486432</Sole>
				<Shared>0</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>PayPal</nameOfIssuer>
			<titleOfClass>COM</titleOfClass>
			<cusip>70450Y103</cusip>
			<value>20789</value>
			<shrsOrPrnAmt>
				<sshPrnamt>274004</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>SOLE</investmentDiscretion>
			<otherManager>None</otherManager>
			<votingAuthority>
				<Sole>274004</Sole>
				<Shared>0</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>Qualcomm Inc.</nameOfIssuer>
			<titleOfClass>COM</titleOfClass>
			<cusip>747525103</cusip>
			<value>14140</value>
			<shrsOrPrnAmt>
				<sshPrnamt>255190</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>SOLE</investmentDiscretion>
			<otherManager>None</otherManager>
			<votingAuthority>
				<Sole>255190</Sole>
				<Shared>0</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>US Silica Holdings</nameOfIssuer>
			<titleOfClass>COM</titleOfClass>
			<cusip>90346E103</cusip>
			<value>4265</value>
			<shrsOrPrnAmt>
				<sshPrnamt>167128</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>SOLE</investmentDiscretion>
			<otherManager>None</otherManager>
			<votingAuthority>
				<Sole>167128</Sole>
				<Shared>0</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>Tupperware Brands Corp.</nameOfIssuer>
			<titleOfClass>COM</titleOfClass>
			<cusip>899896104</cusip>
			<value>8240</value>
			<shrsOrPrnAmt>
				<sshPrnamt>170327</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>SOLE</investmentDiscretion>
			<otherManager>None</otherManager>
			<votingAuthority>
				<Sole>170327</Sole>
				<Shared>0</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>Wal Mart Stores Inc.</nameOfIssuer>
			<titleOfClass>COM</titleOfClass>
			<cusip>931142103</cusip>
			<value>10801</value>
			<shrsOrPrnAmt>
				<sshPrnamt>121398</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>SOLE</investmentDiscretion>
			<otherManager>None</otherManager>
			<votingAuthority>
				<Sole>121398</Sole>
				<Shared>0</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
</informationTable>
