A device for temporarily supporting mine lagging members,申请号GB19530017377-传众专利搜索

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发明名称	A device for temporarily supporting mine lagging members
摘要
申请公布号	GB736569(A)	申请公布日期	1955.09.07
申请号	GB19530017377	申请日期	1953.06.23
申请人	WESTFALENHUTTE A.G.;LORENZ-POLYGON-AUSBAU G.M.B.H.	发明人
分类号	E21D11/40	主分类号	E21D11/40
代理机构		代理人
主权项
地址

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