James R. Hess

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Bethel, PA, US

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Patents Grantslast 30 patents

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...