Variable speed gear,申请号US19380217849-传众专利搜索

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发明名称	Variable speed gear
摘要
申请公布号	US2239973(A)	申请公布日期	1941.04.29
申请号	US19380217849	申请日期	1938.07.07
申请人	POL RAVIGNEAUX	发明人	RAVIGNEAUX POL
分类号	F16H3/66	主分类号	F16H3/66
代理机构		代理人
主权项
地址

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