FR601837A - Perfectionnement aux appareils de contrôle à engrenages fonctionnant avec des pièces de monnaie utilisés dans les communications radiotélégraphiques
- Google Patents
Perfectionnement aux appareils de contrôle à engrenages fonctionnant avec des pièces de monnaie utilisés dans les communications radiotélégraphiques
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DUBILIER CONDENSER CO Ltd
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DUBILIER CONDENSER CO Ltd
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Application filed by DUBILIER CONDENSER CO LtdfiledCriticalDUBILIER CONDENSER CO Ltd
Application grantedgrantedCritical
Publication of FR601837ApublicationCriticalpatent/FR601837A/fr
G07F17/00—Coin-freed apparatus for hiring articles; Coin-freed facilities or services
G07F17/28—Coin-freed apparatus for hiring articles; Coin-freed facilities or services for radio apparatus
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Physics & Mathematics
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General Physics & Mathematics
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FR601837D1925-04-011925-07-07Perfectionnement aux appareils de contrôle à engrenages fonctionnant avec des pièces de monnaie utilisés dans les communications radiotélégraphiques
ExpiredFR601837A
(fr)