Improvements in linings for tunnels and like underground structures,申请号GB19390003548-传众专利搜索

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发明名称	Improvements in linings for tunnels and like underground structures
摘要
申请公布号	GB524609(A)	申请公布日期	1940.08.09
申请号	GB19390003548	申请日期	1939.02.02
申请人	HAROLD LASHMAR PENFOLD	发明人
分类号	E21D11/38	主分类号	E21D11/38
代理机构		代理人
主权项
地址

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