Hans G. Hofgraff

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Hopzkirchen, DE

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Patents Grantslast 30 patents

Information Patent Grant
Electrical circuit for the switch-off relief of a controllable semi...
- Patent number 5,149,995
- Issue date Sep 22, 1992
- Transtechnik GmbH
- Hans G. Hofgraff
- H03 - BASIC ELECTRONIC CIRCUITRY