Grubenausbau von im wesentlichen eifoermigem Querschnitt,申请号DE1936I056088D-传众专利搜索

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发明名称	Grubenausbau von im wesentlichen eifoermigem Querschnitt
摘要
申请公布号	DE678332(C)	申请公布日期	1939.07.13
申请号	DE1936I056088D	申请日期	1936.10.07
申请人	HEINRICH ISSELHORST	发明人	ISSELHORST HEINRICH
分类号	E21D11/18	主分类号	E21D11/18
代理机构		代理人
主权项
地址

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