Eckverbindung fuer den eisernen Grubenausbau,申请号DED549044D-传众专利搜索

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发明名称	Eckverbindung fuer den eisernen Grubenausbau
摘要
申请公布号	DE549044(C)	申请公布日期	1932.04.22
申请号	DED549044D	申请日期	1930.11.30
申请人	HEINRICH ROHDE	发明人
分类号	E21D5/08;E21D11/22	主分类号	E21D5/08
代理机构		代理人
主权项
地址

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