Guenter Roppelt

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Nuremberg, DE

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Patents Grantslast 30 patents

Information Patent Grant
Measuring method for determining the difference between an A-C volt...
- Patent number 4,864,224
- Issue date Sep 5, 1989
- Brown, Boveri & Cie Aktiengesellschaft
- Guenter Roppelt
- G01 - MEASURING TESTING