Method of preparing a magnetic sound carrier,申请号US19540452212-传众专利搜索

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发明名称	Method of preparing a magnetic sound carrier
摘要
申请公布号	US3003965(A)	申请公布日期	1961.10.10
申请号	US19540452212	申请日期	1954.08.25
申请人	NORTH AMERICAN PHILIPS COMPANY, INC.	发明人	TROELSTRA SJERP ANNE;LAAR JAN ANTON WILLEM VAN
分类号	C09D5/23;G11B5/70;G11B5/842	主分类号	C09D5/23
代理机构		代理人
主权项
地址

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