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发明名称
REVERSE PILE EXCAVATOR WITH BUILTTIN HYDRAULIC MOTOR
摘要
申请公布号
JPS5628990(A)
申请公布日期
1981.03.23
申请号
JP19790105336
申请日期
1979.08.17
申请人
KONOIKEGUMI KK
发明人
KAWASAKI KENJI;KUDOU KOUI;OOHASHI AKIRA;MATSUO TAKASHI
分类号
E21B10/00;E21B4/02
主分类号
E21B10/00
代理机构
代理人
主权项
地址
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