Magnetic recording machine,申请号GB19430021752-传众专利搜索

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发明名称	Magnetic recording machine
摘要
申请公布号	GB586390(A)	申请公布日期	1947.03.18
申请号	GB19430021752	申请日期	1943.12.28
申请人	HERMAN SANFORD HELLER	发明人
分类号	G11B5/49;G11B15/12;G11B15/28;G11B15/44;G11B15/50	主分类号	G11B5/49
代理机构		代理人
主权项
地址

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