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发明名称
GAS SUPPLY WELL AND CONSTRUCTION THEREOF
摘要
申请公布号
JPH11197644(A)
申请公布日期
1999.07.27
申请号
JP19980003458
申请日期
1998.01.09
申请人
MAEZAWA IND INC
发明人
NAKAGAWA ATSUSHI
分类号
E21B43/02;B09C1/00;B09C1/04;(IPC1-7):B09C1/04
主分类号
E21B43/02
代理机构
代理人
主权项
地址
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