Mack D. Welch

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Bridgeport, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Method of manufacturing universal joint housing
- Patent number 4,381,659
- Issue date May 3, 1983
- General Motors Corporation
- Mack D. Welch
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...