Apparatus for driving flexible members,申请号US19470731181-传众专利搜索

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发明名称	Apparatus for driving flexible members
摘要
申请公布号	US2498990(A)	申请公布日期	1950.02.28
申请号	US19470731181	申请日期	1947.02.27
申请人	RAYTHEON MANUFACTURING COMPANY	发明人	FRYKLUND ROBERT A.
分类号	B06B1/08;H04R15/00	主分类号	B06B1/08
代理机构		代理人
主权项
地址

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