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All Patents in class 409/275
Patents 1 - 9 of 9
First set of recordsLast set of records
NumberDatePatenteeTitleType
395,213Dec. 25, 1888M.E. CampfieldMachine For Truing and Dressing Wrench Blanks
489,523Jan. 10, 1893V.F. CarpenterWrench Milling Machinemaking wrenches
1,170,010Feb. 01, 1916M.A. SmithAutomatic metal-shaping machinemetal shapers
1,815,647Jul. 21, 1931L.H. BloodBroaching Machinebroaching machines
1,848,044Mar. 01, 1932L.H. BloodBroaching Machinebroaching machines
2,044,496Jun. 16, 1936E.C. BullardStationary Tool Metal Working Apparatus
2,282,720May 12, 1942W.L. GroeneCrankshaft Broaching Lathemetalworking machine mechanisms
2,315,476Mar. 30, 1943W.L. GroeneBroaching Machinebroaching machines
2,333,337Nov. 02, 1943C.M. Beach, E.C. RachrsBroaching Machinebroaching machines
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