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发明名称
PUMPING-UP DEVICE
摘要
申请公布号
JPH10292765(A)
申请公布日期
1998.11.04
申请号
JP19970102110
申请日期
1997.04.18
申请人
SHIMIZU CORP
发明人
MIYAKE NORIJI;KOSAKA NOBUAKI;ISHIKAWA AKIRA
分类号
E21B43/00;(IPC1-7):E21B43/00
主分类号
E21B43/00
代理机构
代理人
主权项
地址
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