Method of rehabilitating manholes by custom lining/relining.,申请号US19900460652-传众专利搜索

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发明名称	Method of rehabilitating manholes by custom lining/relining.
摘要
申请公布号	US5002438(B1)	申请公布日期	1995.05.30
申请号	US19900460652	申请日期	1990.01.03
申请人	STRONG SYSTEMS INC.	发明人	STRONG WILLIAM A.
分类号	E02D29/12;E04F21/14;(IPC1-7):E02D29/12	主分类号	E02D29/12
代理机构		代理人
主权项
地址

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