Reinigen von Graphit fuer Vakuumentladungsapparate,申请号DE1935A074978D-传众专利搜索

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发明名称	Reinigen von Graphit fuer Vakuumentladungsapparate
摘要
申请公布号	DE661442(C)	申请公布日期	1938.06.18
申请号	DE1935A074978D	申请日期	1935.01.06
申请人	ALLGEMEINE ELEKTRICITAETS-GESELLSCHAFT	发明人	DOBKE DIPL.-ING. GUENTHER
分类号	C01B31/04	主分类号	C01B31/04
代理机构		代理人
主权项
地址

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