REVETEMENT DE TUNNELS,申请号BE19720783955-传众专利搜索

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发明名称	REVETEMENT DE TUNNELS
摘要
申请公布号	BE783955(A1)	申请公布日期	1972.09.18
申请号	BE19720783955	申请日期	1972.05.25
申请人	COMMERCIAL SHEARING INC., 1775 LOGAN AVENUE, YOUNGSTOWN, OHIO,(E.U.A.)	发明人	N. CHLUMECKY.
分类号	E21D11/04;E21D11/08;E21D11/38;E21D11/40;(IPC1-7):E01G/	主分类号	E21D11/04
代理机构		代理人
主权项
地址

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