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Hermes Patentverwertungs GmbH
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Hermes Patentverwertungs GmbH
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G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
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FR873187D1939-09-271941-06-19Dispositif pour maintenir automatiquement constante une tension continue
ExpiredFR873187A
(fr)