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All Patents in class 74/88
Patents 1 - 7 of 7
First set of recordsLast set of records
NumberDatePatenteeTitleType
68,071Aug. 27, 1867D.F. HartfordImproved Bow-Drill Stockhand drills
72,632Dec. 24, 1867D.F. HartfordImprovement in Stringing Bow-Drill Stockshand drills
203,402May 07, 1878C.L. BellamySpinning-Top Like Hand Drillhand drills
1,284,108Nov. 05, 1918C.A. HultquistDrilling Machine
1,510,439Sep. 30, 1924E.R. DraverTransmission mechanism for feeders connected in a gang
1,762,063Jun. 03, 1930G.H. KnightMechanical Movementmetalworking machine mechanisms
2,923,206Feb. 02, 1960M. KovacIndexing Attachment for Milling Machines and the Likeindexers and dividers
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