Improvements in variable-speed gearing for bicycles,申请号GB19300026966-传众专利搜索

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发明名称	Improvements in variable-speed gearing for bicycles
摘要
申请公布号	GB348984(A)	申请公布日期	1931.05.21
申请号	GB19300026966	申请日期	1930.09.09
申请人	MARCEL BOEUF;CHARLES RUDELLI	发明人
分类号	B62M9/124	主分类号	B62M9/124
代理机构		代理人
主权项
地址

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