Tapering or chamfering taps or reamers

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Patents Grantslast 30 patents

Information Patent Grant
Spiral flute tap with continuously increasing helix angle
- Patent number 10,766,083
- Issue date Sep 8, 2020
- Kennametal Inc.
- Yan Yan
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Form tap and method of making such
- Patent number 8,602,841
- Issue date Dec 10, 2013
- Harry Leroy Ellis
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
3902281
- Patent number 3,902,281
- Issue date Sep 2, 1975
- B24 - GRINDING POLISHING
Information Patent Grant
3200540
- Patent number 3,200,540
- Issue date Aug 17, 1965
- B24 - GRINDING POLISHING
Information Patent Grant
2358241
- Patent number 2,358,241
- Issue date Sep 12, 1944
- B24 - GRINDING POLISHING
Information Patent Grant
2209228
- Patent number 2,209,228
- Issue date Jul 23, 1940
- B24 - GRINDING POLISHING
Information Patent Grant
2040709
- Patent number 2,040,709
- Issue date May 12, 1936
- B24 - GRINDING POLISHING
Information Patent Grant
1709617
- Patent number 1,709,617
- Issue date Apr 16, 1929
- B24 - GRINDING POLISHING
Information Patent Grant
1687725
- Patent number 1,687,725
- Issue date Oct 16, 1928
- B24 - GRINDING POLISHING