ES215536A1 - Unos perfeccionamientos en los interruptores de conmutación estrella-triángulo y de inversión de giro, de funcionamiento rotativo
- Google Patents
Unos perfeccionamientos en los interruptores de conmutación estrella-triángulo y de inversión de giro, de funcionamiento rotativo
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Pery Botet Joaquin M A
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Pery Botet Joaquin M A
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ES215536A1954-05-211954-05-21Unos perfeccionamientos en los interruptores de conmutación estrella-triángulo y de inversión de giro, de funcionamiento rotativo
ExpiredES215536A1
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