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发明名称
DIGGER
摘要
申请公布号
YU232275(A)
申请公布日期
1982.02.28
申请号
YU19750002322
申请日期
1975.09.15
申请人
DRESSER IND INC
发明人
BARON B.G.
分类号
E02F3/30;E02F3/42;(IPC1-7):E02F3/38;E02F9/14
主分类号
E02F3/30
代理机构
代理人
主权项
地址
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