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发明名称
TRIVELLA AD ORGANI SCAVATORI RUOTANTI
摘要
申请公布号
IT1143393(B)
申请公布日期
1986.10.22
申请号
IT19810067401
申请日期
1981.03.23
申请人
REED ROCK BIT CO
发明人
TAYLOR PHILIP ALAN;CARTER MARK WARREN;CHILDERS JOHN STEVENSON;PASTUSEK PAUL ERNEST
分类号
E21B10/18;(IPC1-7):E21B/
主分类号
E21B10/18
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