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All Patents in class 72
Patents 856 - 870 of 980
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2,220,037Oct. 29, 1940R.P. FitzgeraldDouble-acting drop hammerdrop hammers
2,224,184Dec. 10, 1940J.K. DiamondMachine for applying belt lacers and the likebelts, belt lacing and belt lacers
2,259,640Oct. 21, 1941J.H. HoernThread Forming Apparatusmetal threading machines
2,260,624Oct. 28, 1941A.S. JohannSheet Metal Shapersheet metal
2,263,680Nov. 25, 1941R.P. Fitzgerald, W.H. FitzgeraldDrop hammerdrop hammers
2,266,997Dec. 23, 1941C.F. ShermanMaking links for machine-gun belts
2,283,258May 19, 1942J. JensenMethod of and means for producing sheet metal joint locks and the likemetal bending machines
2,296,173Sep. 15, 1942S. MandlSpreading Tool
2,305,868Dec. 22, 1942H.J. Siekmann, W.F. GroeneWork Handling Devicemetalworking machine mechanisms
2,321,325Jun. 08, 1943C.F. Sherman, A.E. CasertaDieing machine
2,335,480Nov. 30, 1943O. BergstromBending machine
2,336,621Dec. 14, 1943R.G. TourneauContinuous bar millsteel maker
2,340,529Feb. 01, 1944W.W. HartmanMethod of Making Socket Wrenchesmaking wrenches
2,341,959Feb. 15, 1944H.K. SwitzerPiston Expanderautomotive tools
2,345,563Apr. 04, 1944R.L. Alcorn, Jr.Hydraulically operated drop hammerdrop hammers
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