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发明名称
COLUNA
摘要
申请公布号
BR7703714(A)
申请公布日期
1978.02.28
申请号
BR19770003714
申请日期
1977.06.08
申请人
ENTREPRISE EQUIP MEC HYDRAULIQUES EMH
发明人
TUSON S
分类号
E02B17/00;B63B35/44;E21B33/035;E21B41/04;E21B43/017;(IPC1-7):E21B23/00
主分类号
E02B17/00
代理机构
代理人
主权项
地址
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