Magnetic sound translating head,申请号US19460659246-传众专利搜索

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发明名称	Magnetic sound translating head
摘要
申请公布号	US2456388(A)	申请公布日期	1948.12.14
申请号	US19460659246	申请日期	1946.04.03
申请人	CORNWELL LIONEL B	发明人	CORNWELL LIONEL B.
分类号	H04R11/08	主分类号	H04R11/08
代理机构		代理人
主权项
地址

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