Hans Wiederkehr

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Rumlang, CH

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Patents Grantslast 30 patents

Information Patent Grant
Grinding head
- Patent number 4,735,019
- Issue date Apr 5, 1988
- Hans Wiederkehr
- B24 - GRINDING POLISHING
Information Patent Grant
Apparatus for the treatment of plant material
- Patent number 4,718,337
- Issue date Jan 12, 1988
- Pharos Inventions Ag
- Hans Wiederkehr
- B30 - PRESSES
Information Patent Grant
Electrical tensioning device for orthopedic adjustment means
- Patent number 4,712,770
- Issue date Dec 15, 1987
- Hans Wiederkehr
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Toolholder for rotary tool
- Patent number 4,439,075
- Issue date Mar 27, 1984
- Hans Wiederkehr
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Spreader for granular spreading material
- Patent number 4,385,729
- Issue date May 31, 1983
- Hans Wiederkehr
- B60 - VEHICLES IN GENERAL