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发明名称
DISPOSITIVO DI POSIZIONAMENTO DIGITALE E PROCEDIMENTO PER IL SUO FUNZIONAMENTO.
摘要
申请公布号
IT8122042(D0)
申请公布日期
1981.05.29
申请号
IT19810022042
申请日期
1981.05.29
申请人
HALLIBURTON CO.
发明人
BRUCE MICHAEL COX;DALE EDWARD WHEELER
分类号
F15B11/12;(IPC1-7):G05D/
主分类号
F15B11/12
代理机构
代理人
主权项
地址
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