Head for magnetic recording machines,申请号US19450637656-传众专利搜索

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发明名称	Head for magnetic recording machines
摘要
申请公布号	US2468601(A)	申请公布日期	1949.04.26
申请号	US19450637656	申请日期	1945.12.28
申请人	C. G. CONN, LTD.	发明人	LONG THOMAS H.
分类号	G11B5/147;G11B5/23;G11B15/60	主分类号	G11B5/147
代理机构		代理人
主权项
地址

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