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Patents Grants
last 30 patents
Information
Patent Grant
Puffer interrupter with main and auxiliary pistons and common cylinder
Patent number
4,103,131
Issue date
Jul 25, 1978
Sprecher & Schuh Ltd. (SSA)
Rudolf Graf
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Metal arcing ring for high voltage gas-insulated bus
Patent number
4,090,028
Issue date
May 16, 1978
Sprecher & Schuh Ltd. (SSA)
Jurg Vontobel
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Puffer interrupter with piston bypass channel
Patent number
4,079,218
Issue date
Mar 14, 1978
Sprecher & Schuh Ltd. (SSA)
Hubert Spiegel
H01 - BASIC ELECTRIC ELEMENTS
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last 30 patents
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