Friedrich-Wilhelm Von Hackewitz

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Schweinfurt, DE

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Patents Grantslast 30 patents

Information Patent Grant
Rolling element clutch
- Patent number 6,640,947
- Issue date Nov 4, 2003
- Friedrich-Wilhelm von Hackewitz
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Self-containing full-complement roller bearing cage
- Patent number 6,471,411
- Issue date Oct 29, 2002
- Friedrich-Wilhelm Von Hackewitz
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Frame with adjustable string tensioning means
- Patent number 5,029,857
- Issue date Jul 9, 1991
- Friedrich-Wilhelm von Hackewitz
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Stringed frame with adjustable tensioning
- Patent number 4,995,608
- Issue date Feb 26, 1991
- Friedrich-Wilhelm von Hackewitz
- A63 - SPORTS GAMES AMUSEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Self-containing full-complement roller bearing cage
- Publication number 20020021848
- Publication date Feb 21, 2002
- Friedrich-Wilhelm Von Hackewitz
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...