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All Patents of Type: tapping machines
Patents 1 - 15 of 26
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NumberDatePatenteeTitleType
15,219Jul. 01, 1856H.A. ChapinTapping Gas Fittingstapping machines
112,626Mar. 14, 1871J.L. Hewes, P.I. PerrinImprovement in machines for tapping boilerstapping machines
465,827Dec. 29, 1891H.C. BradfordTapping and Thread Cutting Machinetapping machines
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
766,723Aug. 02, 1904C.C. NewtonDrilling and Tapping MAchinetapping machines
832,221Oct. 02, 1906H.A. TuttleTapping-machinetapping machines
907,163Dec. 22, 1908W. MurcheyMachine for Boring, Tapping, &c.tapping machines
GB-190,901,575Jan. 24, 1910J.H. HamiltonImprovements in machine toolsmilling machines
1,168,143Jan. 11, 1916F.R. Gravatt, H.W. AlcornTapping Machinetapping machines
1,879,531Sep. 27, 1932B.P. SchiltzMachine tooltapping machines
2,189,422Feb. 06, 1940G.W. IrwinCombined drilling and tapping machinedrill presses
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