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CadStd History
www.cadstd.com
CadStd History. CadStd (pronounced Cad Standard), was created by John Apperson beginning in the 1980's. The author was motivated to produce an inexpensive CAD program ...
(Aug 2, 2000) CadStd author undergoes aortic valve
www.cadstd.com
John Apperson (the author of CadStd) undergoes aortic valve replacement surgery. (As seen through the eyes of his wife, Sherrie Apperson) ...
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