Helmut Beier

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Berlin, DE

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Patents Grantslast 30 patents

Information Patent Grant
Electric high-voltage circuit breaker
- Patent number 4,920,242
- Issue date Apr 24, 1990
- Siemens Aktiengesellschaft
- Helmut Beier
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Gas pressure circuit breaker
- Patent number 4,678,878
- Issue date Jul 7, 1987
- Siemens Aktiengesellschaft
- Helmut Beier
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Contact system for gas blast circuit breakers
- Patent number 4,439,652
- Issue date Mar 27, 1984
- Siemens AG
- Helmut Beier
- H01 - BASIC ELECTRIC ELEMENTS