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B61C17/00—Arrangement or disposition of parts; Details or accessories not otherwise provided for; Use of control gear and control systems
B61C17/12—Control gear; Arrangements for controlling locomotives from remote points in the train or when operating in multiple units
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FR1006533D1948-01-281948-01-28
Method of changing speed for high power multiple drive units and device for carrying out the method
ExpiredFR1006533A
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