Robert Marvin

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Palatine, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Outside diameter finishing tool and method of making the same
- Patent number 6,080,053
- Issue date Jun 27, 2000
- Engis Corporation
- Robert Marvin
- B24 - GRINDING POLISHING
Information Patent Grant
Outside diameter finishing tool and method of making the same
- Patent number 5,846,126
- Issue date Dec 8, 1998
- Engis Corporation
- Robert Marvin
- B24 - GRINDING POLISHING
Information Patent Grant
Outside diameter finishing tool
- Patent number 5,564,972
- Issue date Oct 15, 1996
- Engis Corporation
- Robert Marvin
- B24 - GRINDING POLISHING