Improvements in or relating to change-speed chain gearing,申请号GB19440022456-传众专利搜索

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发明名称	Improvements in or relating to change-speed chain gearing
摘要
申请公布号	GB592183(A)	申请公布日期	1947.09.10
申请号	GB19440022456	申请日期	1944.11.14
申请人	ALFRED ALBERT LETOURNEUR	发明人
分类号	B62M9/124;B62M9/1248;B62M9/126	主分类号	B62M9/124
代理机构		代理人
主权项
地址

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