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发明名称
DRILLING LOADER
摘要
申请公布号
JPH02125030(A)
申请公布日期
1990.05.14
申请号
JP19880278274
申请日期
1988.11.02
申请人
TAIKUU:KK
发明人
TAKAGI SHIGEO;DAIDOJI TAKESHI
分类号
E02F7/04;E21B7/02;E21B15/00;E21B19/08;E21D9/12
主分类号
E02F7/04
代理机构
代理人
主权项
地址
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