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Walter Schaad
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Oberentfelden, CH
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last 30 patents
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Patent Grant
High-voltage circuit breaker including cut-on resistor
Patent number
4,513,187
Issue date
Apr 23, 1985
Sprecher & Schuh AG
Walter Schaad
H01 - BASIC ELECTRIC ELEMENTS
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Patent Grant
Gas-blast switch
Patent number
4,379,958
Issue date
Apr 12, 1983
Sprecher & Schuh AG
Johann Blatter
H01 - BASIC ELECTRIC ELEMENTS