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Patents Granted on 1920-__-__
Patents 1 - 15 of 324
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1,327,007Jan. 06, 1920G.A. AndersonCutter-headpipe threading machines
1,327,008Jan. 06, 1920G.A. AndersonCutter-headpipe threading machines
1,327,155Jan. 06, 1920C. GottschalkScraperscrapers
1,327,160Jan. 06, 1920J. HurtigElectrically-driven spindleelectric motors
1,327,296Jan. 06, 1920P.A. SolemTraction-blockwoodworking machine stockfeeding mechanisms
1,327,309Jan. 06, 1920G.W. BuffordChain Pipe Wrenchchain and strap wrenches
1,327,356Jan. 06, 1920S.W. Putnam, 3dTailstock-clamping mechanismmetal lathes
1,327,506Jan. 06, 1920M. WalkerMagnetic clutchindustrial machine clutches
1,327,604Jan. 06, 1920A.C. BoothVertically-adjustable engine-lathemetal lathes
GB-137,182Jan. 08, 1920W.B. HaighTurret-head hollow-chisel and chain-cutter mortisermortising machines
CA-196,083Jan. 13, 1920R. RichardsonHoop forming machinehoop making machines
1,327,627Jan. 13, 1920J. MosciniPaper-match machinematch making machines
1,327,641Jan. 13, 1920F.H. StolpMachine for Folding Metal Tubesmetal bending machines
1,327,654Jan. 13, 1920C.R. DavisFertilizer-distributor
1,327,815Jan. 13, 1920H.G. FrancisVeneer-pressveneer machines
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