PLUG FOR CUT OFF CONSTRUCTION OF OVERFLOW WATER AND SPRING WATER IN BORING-HOLE INTERMEDIATE SECTION AND METHOD OF CUT OFF CONSTRUCTION,申请号JP19870289013-传众专利搜索

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发明名称	PLUG FOR CUT OFF CONSTRUCTION OF OVERFLOW WATER AND SPRING WATER IN BORING-HOLE INTERMEDIATE SECTION AND METHOD OF CUT OFF CONSTRUCTION
摘要
申请公布号	JPH01131789(A)	申请公布日期	1989.05.24
申请号	JP19870289013	申请日期	1987.11.16
申请人	TAKENAKA KOMUTEN CO LTD;SEKISO KK	发明人	OKOCHI KATSUTOSHI;KAMATA SEIZO
分类号	E21B33/13	主分类号	E21B33/13
代理机构		代理人
主权项
地址

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