David A. Passmore

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Wayland, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Nipple forming apparatus
- Patent number 4,798,076
- Issue date Jan 17, 1989
- Benteler Industries, Inc.
- Donald R. Rigsby
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...