DEWATERING ELEMENT FOR WELL BUILDING,申请号HU19910002487-传众专利搜索

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发明名称	DEWATERING ELEMENT FOR WELL BUILDING
摘要
申请公布号	HU912487(D0)	申请公布日期	1991.12.30
申请号	HU19910002487	申请日期	1991.07.24
申请人	LAUSITZER BRAUNKOHLE AG.,DE	发明人	TOST,RAINER,DE;DOMKE,KONRAD,DE
分类号	E03B3/24;B01D39/20;E03B3/18;E03B3/26;E21B43/08	主分类号	E03B3/24
代理机构		代理人
主权项
地址

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