with cutting teeth disposed on the inner periphery of a ring

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Industry

CPC
B23F21/124

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Parent Industries

BPERFORMING OPERATIONS TRANSPORTING B23Machine tools B23FMAKING GEARS OR TOOTHED RACKS B23F21/00Tools specially adapted for use in machines for manufacturing gear teeth

Current Industry

B23F21/124with cutting teeth disposed on the inner periphery of a ring

Industries

Patents Grantslast 30 patents

Information Patent Grant
1626821
- Patent number 1,626,821
- Issue date May 3, 1927
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
1434410
- Patent number 1,434,410
- Issue date Nov 7, 1922
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR