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All Patents in class 29/DIG.09
Patents 1 - 14 of 14
First set of recordsLast set of records
NumberDatePatenteeTitleType
115,451May 30, 1871J.N. DurrellImprovement in machines for tapping nutsnut or bolt making machines
142,511Sep. 02, 1873S.W. Putnam, Jr.Improvement in machines for tapping nutsnut or bolt making machines
367,331Jul. 26, 1887W.F. BarnesGrindstone-framegrindstone frames
399,344Mar. 12, 1889J.M. PetersenMachine for fitting the ends of band-sawsbandsaw accessories
575,737Jan. 26, 1897A.S. RobinsonMachine for grinding knives of cutter-barssharpeners
609,803Aug. 30, 1898J.F. GillilandBox-making machinebox making machines
622,212Apr. 04, 1899R. DuttonTwist-drill grinderdrill grinders
1,090,299Mar. 17, 1914A.M. Harrington, R.F. ScottBolt-cutting machinenut or bolt making machines
1,486,155Mar. 11, 1924A.M. MorganBung-hole reamercooper
1,635,702Jul. 12, 1927E.P. Bullard, Jr.Cutting Compound Distribution System
1,971,790Aug. 28, 1934A.W. MallPortable power tool
2,209,939Jul. 30, 1940L.L. SchauerAutomatically controlled gravity oilermetalworking machine lubrication
2,372,699Apr. 03, 1945H.V. Boehnke, C.A. WikenCutting machinecircular crosscut saws
2,374,716May 01, 1945C.A. WikenGrindercutter grinding
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