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发明名称
Jet piercer blow pipe and tooth lug therefor
摘要
申请公布号
US3152652(A)
申请公布日期
1964.10.13
申请号
US19620196353
申请日期
1962.05.21
申请人
ARCOS CORPORATION
发明人
MURRAY RICHARD H.;WILCOX WAYNE L.
分类号
E21B7/14
主分类号
E21B7/14
代理机构
代理人
主权项
地址
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