Bertold Sturmer

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Bad Neustadt, DE

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Patents Grantslast 30 patents

Information Patent Grant
Keyboard switch device for facilitating removal and replacement of...
- Patent number 4,902,862
- Issue date Feb 20, 1990
- Preh Elektrofeinmechanische Werke Jakob Preh Nachf. GmbH & Co.
- Jurgen Oelsch
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Keyboard key with means for supporting large key surface
- Patent number 4,580,022
- Issue date Apr 1, 1986
- Preh Elektrofeinmechanische Werke, Jakob Preh, Nachf. GmbH & Company
- Jurgen Oelsch
- H01 - BASIC ELECTRIC ELEMENTS