WATER COLLECTING DEVICE FROM ON-SINKING PITS,申请号RO19880134959-传众专利搜索

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发明名称	WATER COLLECTING DEVICE FROM ON-SINKING PITS
摘要
申请公布号	RO102304(B1)	申请公布日期	1992.07.06
申请号	RO19880134959	申请日期	1988.08.22
申请人		发明人
分类号	E21D5/04;(IPC1-7):E21D5/04	主分类号	E21D5/04
代理机构		代理人
主权项
地址

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