3. Inventories

6 Months Ended

Jun. 30, 2014

Notes to Financial Statements

Inventories

Inventories consist of :	June 30, 2014		December 31, 2013
Materials	$	300,025	$	440,723
Work in process		87,300		––
Finished goods (including $78,500 and $304,500 held by customers at June 30, 2014 and December 31, 2013, respectively)		2,059,740		1,273,358
Total	$	2,447,065	$	1,714,081