Alfred Seifried

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Friedrichshafen, DT

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Patents Grantslast 30 patents

Information Patent Grant
Radially shiftable gear for speed-changing mechanism
- Patent number 4,075,870
- Issue date Feb 28, 1978
- Zahnradfabrik Friedrichshafen AG
- Alfred Seifried
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Steering gear with varying transmission ratio
- Patent number 4,011,764
- Issue date Mar 15, 1977
- Zahnradfabrik Friedrichshafen AG
- Gunther Buck
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...