Système à compas de variation de longueur de bras de pédalier de bicyclette par mécanisme continu,申请号FRD974821-传众专利搜索

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发明名称	Système à compas de variation de longueur de bras de pédalier de bicyclette par mécanisme continu
摘要
申请公布号	FR974821(A)	申请公布日期	1951.02.26
申请号	FRD974821	申请日期	1948.11.12
申请人		发明人	BILLAULT JEAN
分类号	B62M3/04	主分类号	B62M3/04
代理机构		代理人
主权项
地址

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