SEALING ROD FOR WATER GROUT HOLES IN COAL LAYERS,申请号RO19880136512-传众专利搜索

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发明名称	SEALING ROD FOR WATER GROUT HOLES IN COAL LAYERS
摘要
申请公布号	RO110271(B1)	申请公布日期	1995.11.30
申请号	RO19880136512	申请日期	1988.12.16
申请人	CENTRUL DE CERCETARI, INGINERIE TEHNOLOGICA SI PROIECTARI PENTRU SECURITATE MINIERA	发明人	KOVACS LADISLAU;SOARE ADRIAN;BITIR PAVEL;SIMION SPIRIDON;WERSANSKI EDUARD;IGNAT TOADER;PAGANI IOAN
分类号	E21C35/22;(IPC1-7):E21C35/22	主分类号	E21C35/22
代理机构		代理人
主权项
地址

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