Russell E. Dubois Sr.

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Clawson, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Method of making an expandable mandrel having a thin cylindrical sl...
- Patent number 4,402,449
- Issue date Sep 6, 1983
- Russell E. DuBois
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Workpiece holding device
- Patent number 4,366,735
- Issue date Jan 4, 1983
- Russell E. Dubois
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR