John W. von Greyerz

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Boynton Beach, FL, US

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Patents Grantslast 30 patents

Information Patent Grant
Trans-planetary mechanical torque impeller
- Patent number 5,713,813
- Issue date Feb 3, 1998
- John W. von Greyerz
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Trans-planetary mechanical torque impeller
- Patent number 5,059,163
- Issue date Oct 22, 1991
- John W. von Greyerz
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...