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发明名称
DRIVING-SECTION BEARING DEVICE IN EXCAVATOR AND THE LIKE
摘要
申请公布号
JPH08303174(A)
申请公布日期
1996.11.19
申请号
JP19950111816
申请日期
1995.05.10
申请人
SANWA KIZAI CO LTD
发明人
EGASHIRA HIROYUKI
分类号
E21B7/00;E02D17/13;E02F5/02;E21B19/00;(IPC1-7):E21B19/00
主分类号
E21B7/00
代理机构
代理人
主权项
地址
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