Improvements in devices for tensioning the chain in variable speed gears for cycles,申请号GB19490026870-传众专利搜索

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发明名称	Improvements in devices for tensioning the chain in variable speed gears for cycles
摘要
申请公布号	GB680348(A)	申请公布日期	1952.10.01
申请号	GB19490026870	申请日期	1949.10.19
申请人	LUCIEN JUY	发明人
分类号	B62M9/12;B62M9/16	主分类号	B62M9/12
代理机构		代理人
主权项
地址

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