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发明名称
CONTROLLER FOR VERTICAL POSITIONING OF MINERAL PLOUGH
摘要
申请公布号
GB8427395(D0)
申请公布日期
1984.12.05
申请号
GB19840027395
申请日期
1984.10.30
申请人
HALBACH & BRAUN INDUSTRIEANLAGEN
发明人
分类号
E21C27/32;E21C35/12
主分类号
E21C27/32
代理机构
代理人
主权项
地址
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