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Patents for Wilson Mechanical Instrument Division, American Chain & Cable Co., Inc.
Patents 1 - 7 of 7
First set of recordsLast set of records
NumberDatePatenteeTitleType
1,516,207Nov. 18, 1924S.P. RockwellHardness-testing machinemetal hardness testers
1,516,208Nov. 18, 1924S.P. RockwellHardness-testing machinemetal hardness testers
1,885,972Nov. 01, 1932C.H. WilsonHardness testing gaugemetal hardness testers
CA-336,012Sep. 26, 1933C.H. WilsonHardness testermetal hardness testers
CA-395,516Mar. 25, 1941C.H. WilsonHardness testing devicemetal hardness testers
2,361,441Oct. 31, 1944C.H. WilsonHardness testing indentermetal hardness testers
2,362,941Nov. 14, 1944D.F. SklarPenetrator chuck retainermetal hardness testers
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