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All Patents of Type: tapping machines
Patents 1 - 15 of 64
First set of recordsNext set of recordsLast set of records
15,219Jul. 01, 1856H.A. ChapinTapping Gas Fittingstapping machines
112,626Mar. 14, 1871P.I. Perrin, J.L. HewesImprovement in machines for tapping boilerstapping machines
CA-9,267Oct. 19, 1878S.L. WorsleyMachine for tapping nutsnut or bolt making machines
437,157Sep. 23, 1890H.W. HoneymanTapping attachment for drill presstapping machines
465,827Dec. 29, 1891H.C. BradfordTapping and Thread Cutting Machinetapping machines
489,224Jan. 03, 1893W.W. DoolittleTapping-machinetapping machines
489,317Jan. 03, 1893A. MillTapping attachment for drillstapping machines
535,420Mar. 12, 1895E.A. SearlesDrilling and tapping machinedrill presses
583,883Jun. 08, 1897G.R. BaldwinTapping Machinetapping machines
610,208Sep. 06, 1898H.A. TuttleTapping-machinetapping machines
628,110Jul. 04, 1899O. MuellerTapping-machinetapping machines
649,173May 08, 1900H. MuellerTapping-machinetapping machines
660,760Oct. 30, 1900O. MuellerTapping-machinetapping machines
688,653Dec. 10, 1901F. LambertTool-operating machinedrill presses
766,723Aug. 02, 1904C.C. NewtonDrilling and Tapping MAchinetapping machines
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