Richard Rettew

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Newmanstown, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Positioning of an abrasive belt on a grinding machine
- Patent number 4,267,671
- Issue date May 19, 1981
- Contraves-Goerz Corporation
- Richard Rettew
- B24 - GRINDING POLISHING
Information Patent Grant
Head positioning for a belt grinder
- Patent number 4,262,455
- Issue date Apr 21, 1981
- Contraves-Goerz Corporation
- Richard Rettew
- B24 - GRINDING POLISHING
Information Patent Grant
Conduit making machine, and method of making an article made thereby
- Patent number 3,947,947
- Issue date Apr 6, 1976
- Penn Berks Corporation
- James R. Hess
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...