MAGNETIC HOLDING DRUM,申请号GB19700047446-传众专利搜索

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发明名称	MAGNETIC HOLDING DRUM
摘要
申请公布号	GB1269174(A)	申请公布日期	1972.04.06
申请号	GB19700047446	申请日期	1970.10.06
申请人	ELECTRONIC TRANSMISSION SYSTEMS INC.	发明人
分类号	H01F7/02;H04N1/08	主分类号	H01F7/02
代理机构		代理人
主权项
地址

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