Aus nachgiebig und gelenkig miteinander verbundenen Ausbauteilen bestehender Grubenstrecken- oder Schachtausbau,申请号DE1932D064982D-传众专利搜索

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发明名称	Aus nachgiebig und gelenkig miteinander verbundenen Ausbauteilen bestehender Grubenstrecken- oder Schachtausbau
摘要
申请公布号	DE591342(C)	申请公布日期	1934.01.20
申请号	DE1932D064982D	申请日期	1932.12.28
申请人	KARL DERR	发明人
分类号	E21D11/05	主分类号	E21D11/05
代理机构		代理人
主权项
地址

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