David L. Heldt

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Canton, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
Clutch shoe construction and method of making same
- Patent number 4,903,810
- Issue date Feb 27, 1990
- Dyneer Corporation
- George W. Stock
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Clutch shoe construction and method of making same
- Patent number 4,736,503
- Issue date Apr 12, 1988
- Dyneer Corporation
- George W. Stock
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...