Cathode ray oscillograph,申请号US19280296844-传众专利搜索

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发明名称	Cathode ray oscillograph
摘要
申请公布号	US1910560(A)	申请公布日期	1933.05.23
申请号	US19280296844	申请日期	1928.08.01
申请人	HARALD NORINDER ERNST	发明人	NORINDER ERNST HARALD
分类号	H01J31/12	主分类号	H01J31/12
代理机构		代理人
主权项
地址

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