for cutting thread by successive operations

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Patents Grantslast 30 patents

Information Patent Grant
Hybrid threading tool with cutting portion and rolling portion
- Patent number 11,465,221
- Issue date Oct 11, 2022
- GM Global Technology Operations LLC
- David A. Wulbrecht
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Screw rod forming machine
- Patent number 9,108,259
- Issue date Aug 18, 2015
- DING SHEN MACHINERY CO., LTD.
- Chi-Tien Hung
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
3871252
- Patent number 3,871,252
- Issue date Mar 18, 1975
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR