CATHODE RAY TUBE DEVICE,申请号CAD442135-传众专利搜索

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发明名称	CATHODE RAY TUBE DEVICE
摘要
申请公布号	CA442135(A)	申请公布日期	1947.06.10
申请号	CAD442135	申请日期
申请人	JAN VAN DER MARK;GERARD HEPP	发明人	GERARD HEPP;JAN VAN DER MARK
分类号		主分类号
代理机构		代理人
主权项
地址

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