,申请号NL19370081960-传众专利搜索

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发明名称
摘要
申请公布号	NL54193(C)	申请公布日期	1943.04.15
申请号	NL19370081960	申请日期	1937.04.05
申请人		发明人
分类号	H01J7/18	主分类号	H01J7/18
代理机构		代理人
主权项
地址

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