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发明名称
EXCAVATOR
摘要
申请公布号
AU533493(B2)
申请公布日期
1983.11.24
申请号
AU19810068643
申请日期
1981.03.23
申请人
HOLMGREN, P.E. A.B.
发明人
LARS HOLMGREN;PER-MARTIN HOLMGREN
分类号
E21B7/02;B25D17/32;E02F3/42;E02F3/43;E02F3/96;E21B15/00;E21B19/08;(IPC1-7):E02F3/32;E02F9/22
主分类号
E21B7/02
代理机构
代理人
主权项
地址
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