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B61C9/00—Locomotives or motor railcars characterised by the type of transmission system used; Transmission systems specially adapted for locomotives or motor railcars
B61C9/38—Transmission systems in or for locomotives or motor railcars with electric motor propulsion
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FR663064D1927-12-201928-10-26Perfectionnements aux transmissions et aux accouplements analogues
ExpiredFR663064A
(fr)