Push-pull resistance type phonograph pickup,申请号US19480026511-传众专利搜索

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发明名称	Push-pull resistance type phonograph pickup
摘要
申请公布号	US2590439(A)	申请公布日期	1952.03.25
申请号	US19480026511	申请日期	1948.05.12
申请人	STAR ELECTRONICS, INC.	发明人	MCKNIGHT JOSEPH H.
分类号	H04R21/04	主分类号	H04R21/04
代理机构		代理人
主权项
地址

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