Sealing joints between tunnel linng segments,申请号GB19810001468-传众专利搜索

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发明名称	Sealing joints between tunnel linng segments
摘要
申请公布号	GB2069569(A)	申请公布日期	1981.08.26
申请号	GB19810001468	申请日期	1981.01.17
申请人	SHARP J D	发明人
分类号	E21D11/38;(IPC1-7):E21D11/38	主分类号	E21D11/38
代理机构		代理人
主权项
地址

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