Wolfgang Ruhrmann

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7000 Stuttgart 80, DE

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Patents Grantslast 30 patents

Information Patent Grant
Optical sensor
- Patent number 4,936,681
- Issue date Jun 26, 1990
- Wolfgang Ruhrmann
- G02 - OPTICS
Information Patent Grant
Optical sensor constituting a light transmissive medium with lumine...
- Patent number 4,650,992
- Issue date Mar 17, 1987
- Wolfgang Ruhrmann
- G01 - MEASURING TESTING
Information Patent Grant
Automatic-lock slider for slide fastener
- Patent number 4,161,053
- Issue date Jul 17, 1979
- Ruhrman; Gundel
- Wolfgang Ruhrmann
- A44 - HABERDASHERY JEWELLERY