Elektrischer Vakuumentladungsapparat mit Gas- oder Dampffüllung und metallenem Vakuumgefäss.,申请号CHD198820-传众专利搜索

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发明名称	Elektrischer Vakuumentladungsapparat mit Gas- oder Dampffüllung und metallenem Vakuumgefäss.
摘要
申请公布号	CH198820(A)	申请公布日期	1938.07.15
申请号	CHD198820	申请日期	1937.07.14
申请人	LEHMANN WALTER	发明人	WALTER LEHMANN
分类号		主分类号
代理机构		代理人
主权项
地址

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