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经营范围
发明名称
MINING HYDRAULIC SERVO-MOTOR
摘要
申请公布号
PL152677(B1)
申请公布日期
1991.01.31
申请号
PL19880272687
申请日期
1988.05.24
申请人
发明人
分类号
E21F13/08;F15B15/08;F16J;F16J10/00;(IPC1-7):F15B15/08
主分类号
E21F13/08
代理机构
代理人
主权项
地址
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