Wetterschleuse fuer Grubenstrecken,申请号DE1929ST46847D-传众专利搜索

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发明名称	Wetterschleuse fuer Grubenstrecken
摘要
申请公布号	DE516868(C)	申请公布日期	1931.01.28
申请号	DE1929ST46847D	申请日期	1929.12.19
申请人	PAUL STODT	发明人
分类号	E21F1/14	主分类号	E21F1/14
代理机构		代理人
主权项
地址

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