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发明名称
ROD BREAK-OUT AND MAKE-UP TOOL
摘要
申请公布号
AU2602984(A)
申请公布日期
1984.07.12
申请号
AU19840026029
申请日期
1984.03.22
申请人
LONGYEAR CO.
发明人
GARY H. BECKLEY;WALTER W. SVENDSEN;RONALD E. ANDERSON
分类号
E21B19/16
主分类号
E21B19/16
代理机构
代理人
主权项
地址
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