John H. Farrell

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Buffalo, NY, US

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Patents Grantslast 30 patents

Information Patent Grant
Grinding control system for forming non-circular punching tools
- Patent number 4,136,390
- Issue date Jan 23, 1979
- Houdaille Industries, Inc.
- John H. Farrell
- G05 - CONTROLLING REGULATING
Information Patent Grant
Shape grinder and method
- Patent number 4,084,349
- Issue date Apr 18, 1978
- Houdaille Industries, Inc.
- John H. Farrell
- B24 - GRINDING POLISHING