Rotary driving unit,申请号US19520309607-传众专利搜索

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发明名称	Rotary driving unit
摘要
申请公布号	US2678550(A)	申请公布日期	1954.05.18
申请号	US19520309607	申请日期	1952.09.15
申请人	E. L. CALDWELL & SONS	发明人	JR. EDWARD L. CALDWELL,
分类号	F16D9/06	主分类号	F16D9/06
代理机构		代理人
主权项
地址

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