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All Patents in class 408/172
Patents 1 - 15 of 15
First set of recordsLast set of records
NumberDatePatenteeTitleType
434,898Aug. 19, 1890J.C. WilliamsMachine for Cutting Threads on Boltsmetal threading machines
454,197Jun. 16, 1891H.L. Ament, E. AmentScrew Thread Cutting Machinemetal threading machines
581,187Apr. 20, 1897F.E. Wells, W.C. WellsMachine for Making Nipples and Stud Boltspipe making machines
1,057,014Mar. 25, 1913O.A. SmithDie
1,114,629Oct. 20, 1914W. MurcheyDevice for cutting screw-threadstapping heads and chucks
1,251,527Jan. 01, 1918S. HoughAdustable & Improved Cutting Head for Boring Out Shellslathe tools
1,560,462Nov. 03, 1925R.A. BoehmSelf Opening and Closing Threading Die Holder tap and die holders
1,563,108Nov. 24, 1925A.J. PranceThread-cutting dietapping heads and chucks
1,603,605Oct. 19, 1926C. JobstDie Head for Thread Cutting Toolstap and die holders
1,655,563Jan. 10, 1928A.J. PranceThread-cutting dietapping heads and chucks
1,777,380Oct. 07, 1930A.J. PranceThread-cutting dietapping heads and chucks
1,823,032Sep. 15, 1931G.A. De VliegTool Holderdrilling and boring tool holders
1,936,274Nov. 21, 1933G.E. ShaferDie taps and dies
3,664,755May 23, 1972L.J. CarasFinishing Boring Headboring heads
4,604,008Aug. 05, 1986K.F. BoneMetal Working Machine Having Polygon Tool Support Barmetalworking machine mechanisms
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