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All Patents in class 470
Patents 346 - 360 of 768
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NumberDatePatenteeTitleType
635,324Oct. 24, 1899R. KilburnTap for Forming Screw Threadstaps and dies
642,309Jan. 30, 1900F.A. ErringtonAutomatically Opening or Closing Die for Cutting Screw Threads, &c.taps and dies
643,553Feb. 13, 1900O. SrokaAttachment for Screw Cutting Machinesmetal lathe accessories and attachments
649,733May 15, 1900J.P. LavigneDie Head
670,672Mar. 26, 1901G.W. HoadleyCombination Metal and Wood Working Machinedrilling and boring
679,927Aug. 06, 1901W.A. WarmanMethod of Making Screws
680,217Aug. 13, 1901J.R. BlakesleeRivet Making Machinerivet making machines
686,577Nov. 12, 1901B. BordenPipe Threading Machinepipe threading machines
687,407Nov. 26, 1901W. RungeDrilling and tapping attachment for drill-pressesmetalworking machines
687,804Dec. 03, 1901H. WhartonDie or Tool Holdertaps and dies
688,653Dec. 10, 1901F. LambertTool-operating machinedrill presses
691,198Jan. 14, 1902J. StaphansBolt Pointing Machinemetalworking machines
702,011Jun. 10, 1902J. KinvallDevice for Removing Broken Tapstap extractors
713,004Nov. 04, 1902J. HunterTool Holdertap and die holders
717,199Dec. 30, 1902G.H. HollmTapping Fixturetap and die holders
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