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Patents for Service Diamond Tool Co.
Patents 1 - 8 of 8
First set of recordsLast set of records
NumberDatePatenteeTitleType
2,353,236Jul. 11, 1944D.R. Hammill, L. SmallDiamond toolgrinder dressers
2,545,676Mar. 20, 1951L. SmallDiamond impregnated dressing toolgrinder dressers
2,581,609Jan. 08, 1952L. SmallDiamond toolgrinder dressers
2,726,540Dec. 13, 1955L. Small, M.G. AntonikHardness testing apparatusmetal hardness testers
2,844,957Jul. 29, 1958L. SmallMotorized hardness testermetal hardness testers
2,986,030May 30, 1961L. SmallHardness testing apparatusmetal hardness testers
3,084,538Apr. 09, 1963H. Small, L. SmallTester for plastic deformation and elastic deformation of tested materialsmetal hardness testers
3,538,903Nov. 10, 1970L. SmallCutting tool holdergrinder dressers
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