The Securities and Exchange Commission has not necessarily reviewed the information in this filing and has not determined if it is accurate and complete.
The reader should not assume that the information is accurate and complete.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 13F

FORM 13F INFORMATION TABLE
OMB APPROVAL
OMB Number: 3235-0006
Estimated average burden
hours per response: 23.8
COLUMN 1 COLUMN 2 COLUMN 3 COLUMN 4 COLUMN 5 COLUMN 6 COLUMN 7 COLUMN 8
VALUE SHRS OR SH/ PUT/ INVESTMENT OTHER VOTING AUTHORITY
NAME OF ISSUER TITLE OF CLASS CUSIP (x$1000) PRN AMT PRN CALL DISCRETION MANAGER SOLE SHARED NONE
12 ReTech Corporation COM 90118L202 0 13,000 SH   SOLE   0 0 0
3m Company COM 88579Y101 4,363 24,874 SH   SOLE   0 0 0
AT&T COM 00206R102 2,964 109,734 SH   SOLE   0 0 0
AbbVie Inc COM 00287Y109 970 8,994 SH   SOLE   0 0 0
Abbott Labs COM 002824100 452 3,826 SH   SOLE   0 0 0
Acceleron Pharma Inc COM 00434H108 267 1,550 SH   SOLE   0 0 0
Activision Inc COM 00507V109 3,230 41,735 SH   SOLE   0 0 0
Adobe Systems Inc COM 00724F101 408 709 SH   SOLE   0 0 0
Air Prods & Chems COM 009158106 4,100 16,010 SH   SOLE   0 0 0
Allstate COM 020002101 433 3,400 SH   SOLE   0 0 0
Alphabet A (Google New) COM 02079K305 15,501 5,798 SH   SOLE   0 0 0
Alphabet C Non-voting (Google) COM 02079K107 24,481 9,185 SH   SOLE   0 0 0
Altria Group COM 02209S103 347 7,618 SH   SOLE   0 0 0
Amazon COM 023135106 2,960 901 SH   SOLE   0 0 0
American Express COM 025816109 12,335 73,629 SH   SOLE   0 0 0
Amgen Inc COM 031162100 683 3,210 SH   SOLE   0 0 0
Ants Software Inc COM 037271103 0 39,045 SH   SOLE   0 0 0
Apple Computer COM 037833100 9,607 67,896 SH   SOLE   0 0 0
Apple Rush Company Inc COM 03785R204 0 30,000 SH   SOLE   0 0 0
Artificial Intelligence Techno COM 04316D201 2 75,000 SH   SOLE   0 0 0
Atlas Corp COM Y0436Q109 257 16,900 SH   SOLE   0 0 0
Automatic Data Proc. COM 053015103 18,005 90,062 SH   SOLE   0 0 0
Autozone Inc COM 053332102 306 180 SH   SOLE   0 0 0
Balchem Corp COM 057665200 218 1,500 SH   SOLE   0 0 0
Bank Of America COM 060505104 4,376 103,085 SH   SOLE   0 0 0
Bank Of NY Mellon COM 064058100 2,843 54,845 SH   SOLE   0 0 0
Bausch Health Companie F COM 071734107 236 8,475 SH   SOLE   0 0 0
Berkshire Hathaway COM 084670991 1,646 4 SH   SOLE   0 0 0
Berkshire Hathaway B COM 084670207 45,562 166,930 SH   SOLE   0 0 0
Boeing COM 097023105 392 1,781 SH   SOLE   0 0 0
Bristol-Myers Squibb COM 110122108 2,943 49,739 SH   SOLE   0 0 0
CSX COM 126408103 524 17,608 SH   SOLE   0 0 0
Canadian Nat. Railway COM 136375102 1,275 11,025 SH   SOLE   0 0 0
Carrier Global COM 14448C104 246 4,758 SH   SOLE   0 0 0
Caterpillar Inc COM 149123101 222 1,155 SH   SOLE   0 0 0
Charter Communications COM 16119P108 2,347 3,226 SH   SOLE   0 0 0
Chevron COM 166764100 1,974 19,460 SH   SOLE   0 0 0
Chubb LTD F COM H1467J104 470 2,712 SH   SOLE   0 0 0
Church & Dwight COM 171340102 886 10,730 SH   SOLE   0 0 0
Cintas COM 172908105 474 1,244 SH   SOLE   0 0 0
Cisco Systems Inc COM 17275R102 521 9,570 SH   SOLE   0 0 0
Citigroup Inc COM 172967424 818 11,663 SH   SOLE   0 0 0
Cloudflare Inc COM 18915M107 237 2,100 SH   SOLE   0 0 0
Coca-Cola COM 191216100 4,378 83,447 SH   SOLE   0 0 0
Colgate Palmolive COM 194162103 2,285 30,236 SH   SOLE   0 0 0
Comcast A COM 20030N101 18,641 333,299 SH   SOLE   0 0 0
Conocophillips COM 20825C104 370 5,462 SH   SOLE   0 0 0
Corteva Inc COM 22052L104 245 5,827 SH   SOLE   0 0 0
Costco Wholesale COM 22160K105 2,422 5,391 SH   SOLE   0 0 0
Curaegis Technologies Inc COM 23127Q102 0 12,000 SH   SOLE   0 0 0
D R Horton Inc COM 23331A109 1,049 12,488 SH   SOLE   0 0 0
Deere And Co COM 244199105 804 2,400 SH   SOLE   0 0 0
Diageo (Guinness) COM 25243Q205 1,397 7,239 SH   SOLE   0 0 0
Discovery Holding A COM 25470F104 13,691 539,440 SH   SOLE   0 0 0
Disney COM 254687106 13,231 78,211 SH   SOLE   0 0 0
Dow Chemical COM 260557103 360 6,253 SH   SOLE   0 0 0
Eaton Corp COM G29183103 1,824 12,218 SH   SOLE   0 0 0
Ecolab Inc COM 278865100 417 2,000 SH   SOLE   0 0 0
Edwards Lifesciences COM 28176E108 10,241 90,463 SH   SOLE   0 0 0
Emerson Electric COM 291011104 529 5,620 SH   SOLE   0 0 0
Expeditors Int'l Of Wa COM 302130109 1,985 16,665 SH   SOLE   0 0 0
Exxon Mobil COM 30231G102 5,051 85,871 SH   SOLE   0 0 0
Facebook COM 30303M102 11,715 34,518 SH   SOLE   0 0 0
Fedex COM 31428X106 2,971 13,550 SH   SOLE   0 0 0
Fiserv Inc Com COM 337738108 5,221 48,118 SH   SOLE   0 0 0
Gazprom PJSC Fadr ADR COM 368287207 348 35,000 SH   SOLE   0 0 0
General Electric COM 369604301 345 3,350 SH   SOLE   0 0 0
General Mills COM 370334104 249 4,162 SH   SOLE   0 0 0
Goldman Sachs COM 38141G104 7,764 20,538 SH   SOLE   0 0 0
Home Depot COM 437076102 8,300 25,285 SH   SOLE   0 0 0
Honeywell Int'l COM 438516106 6,109 28,780 SH   SOLE   0 0 0
Humana Inc Com COM 444859102 242 623 SH   SOLE   0 0 0
Idexx Labs COM 45168D104 1,169 1,880 SH   SOLE   0 0 0
Illumina Inc COM 452327109 681 1,680 SH   SOLE   0 0 0
Immunogen Inc COM 45253H101 501 88,300 SH   SOLE   0 0 0
Intel COM 458140100 10,047 188,578 SH   SOLE   0 0 0
Intuit Inc COM 461202103 37,030 68,637 SH   SOLE   0 0 0
J.P. Morgan Chase COM 46625H100 16,822 102,768 SH   SOLE   0 0 0
Johnson & Johnson COM 478160104 8,396 51,987 SH   SOLE   0 0 0
Kimberly Clark COM 494368103 538 4,065 SH   SOLE   0 0 0
Kinder Morgan Inc. COM 49456B101 1,911 114,201 SH   SOLE   0 0 0
L3 Harris Technologies Inc COM 502431109 6,240 28,334 SH   SOLE   0 0 0
Liberty Media Corp Del Com A S COM 531229409 353 7,475 SH   SOLE   0 0 0
Lilly (eli) COM 532457108 551 2,385 SH   SOLE   0 0 0
Lockheed Martin COM 539830109 3,482 10,091 SH   SOLE   0 0 0
Lowes COM 548661107 372 1,833 SH   SOLE   0 0 0
Markel Corp Holding Co COM 570535104 414 346 SH   SOLE   0 0 0
Marriott Intl New A COM 571903202 1,779 12,013 SH   SOLE   0 0 0
Mastercard Inc COM 57636Q104 11,872 34,146 SH   SOLE   0 0 0
McDonalds COM 580135101 4,742 19,666 SH   SOLE   0 0 0
Medtronic PLC F COM G5960L103 1,031 8,224 SH   SOLE   0 0 0
Merck COM 58933Y105 1,474 19,631 SH   SOLE   0 0 0
Microsoft COM 594918104 49,175 174,428 SH   SOLE   0 0 0
Moody's Corp COM 615369105 337 949 SH   SOLE   0 0 0
Morgan Stanley COM 617446448 5,072 52,127 SH   SOLE   0 0 0
Netflix Inc COM 64110L106 304 498 SH   SOLE   0 0 0
New York Cmnty Bank COM 649445103 139 10,785 SH   SOLE   0 0 0
Newmont Mining COM 651639106 874 16,100 SH   SOLE   0 0 0
Nike Inc Class B COM 654106103 793 5,463 SH   SOLE   0 0 0
Norfolk Southern COM 655844108 5,141 21,486 SH   SOLE   0 0 0
PayPal COM 70450Y103 335 1,288 SH   SOLE   0 0 0
Paychex COM 704326107 11,612 103,261 SH   SOLE   0 0 0
Pepsico Inc. COM 713448108 2,846 18,919 SH   SOLE   0 0 0
Pfizer COM 717081103 1,343 31,219 SH   SOLE   0 0 0
Philip Morris Int'l COM 718172109 392 4,133 SH   SOLE   0 0 0
Phillips 66 COM 718546104 1,517 21,660 SH   SOLE   0 0 0
Procter & Gamble COM 742718109 7,182 51,374 SH   SOLE   0 0 0
Qualcomm COM 747525103 19,390 150,334 SH   SOLE   0 0 0
Raytheon Technologies COM 75513E101 4,956 57,651 SH   SOLE   0 0 0
Salesforce.com Inc COM 79466L302 808 2,980 SH   SOLE   0 0 0
Sherwin Williams COM 824348106 9,845 35,195 SH   SOLE   0 0 0
Starbucks Coffee COM 855244109 421 3,813 SH   SOLE   0 0 0
Stryker COM 863667101 1,443 5,472 SH   SOLE   0 0 0
Sysco COM 871829107 3,177 40,470 SH   SOLE   0 0 0
TC Energy Corporation COM 87807B107 5,130 106,680 SH   SOLE   0 0 0
Texas Instruments COM 882508104 8,795 45,755 SH   SOLE   0 0 0
Thermo Fisher Scientific COM 883556102 18,489 32,362 SH   SOLE   0 0 0
TriNet Group Inc COM 896288107 1,983 20,965 SH   SOLE   0 0 0
Union Pacific COM 907818108 20,935 106,804 SH   SOLE   0 0 0
United Healthcare COM 91324P102 572 1,463 SH   SOLE   0 0 0
United Parcel Service COM 911312106 6,298 34,583 SH   SOLE   0 0 0
Verizon Comm. COM 92343V104 1,787 33,085 SH   SOLE   0 0 0
Vertex Pharmaceuticals COM 92532F100 343 1,889 SH   SOLE   0 0 0
Visa COM 92826C839 26,080 117,082 SH   SOLE   0 0 0
Walgreens Boots Alliance COM 931427108 279 5,940 SH   SOLE   0 0 0
Wells Fargo & Co. COM 949746101 5,484 118,174 SH   SOLE   0 0 0
World Moto Inc COM 98158H106 0 20,000 SH   SOLE   0 0 0