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All Patents in class 279/74
Patents 1 - 5 of 5
First set of recordsLast set of records
NumberDatePatenteeTitleType
889,768Jun. 02, 1908A.L. De LeeuwLocking Mechanism for Machine Toolsmetalworking machine mechanisms
1,252,253Jan. 01, 1918J.C. DufresneChuck
1,391,177Sep. 20, 1921G.H. Du SellChuck
1,679,175Jul. 31, 1928F. Schneider, E.L. ConnellChuck
1,917,531Jul. 11, 1933J.F. LincolnElectric Arc Welding Apparatuswelders
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