TELEPHONE OPERATED OPTOELECTRONIC VOLUME CONTROL,申请号USD3446976-传众专利搜索

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发明名称	TELEPHONE OPERATED OPTOELECTRONIC VOLUME CONTROL
摘要
申请公布号	US3446976(A)	申请公布日期	1969.05.27
申请号	USD3446976	申请日期	1966.02.23
申请人	CLIFFORD O. SHAW	发明人	CLIFFORD O. SHAW
分类号	H03G1/00;H03G1/02;H03G3/00;H04M1/82;(IPC1-7):G02F1/28	主分类号	H03G1/00
代理机构		代理人
主权项
地址

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