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David A. Ross
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Amherst, NH, US
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last 30 patents
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Patent Grant
Method and apparatus for testing characteristics of extruded elasto...
Patent number
5,033,308
Issue date
Jul 23, 1991
Harvard Industries
Gilles Le Compagnon
E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS