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发明名称
Tong die
摘要
申请公布号
US3215010(A)
申请公布日期
1965.11.02
申请号
US19620168703
申请日期
1962.01.25
申请人
MONTGOMERY DRILLING COMPANY
发明人
MONTGOMERY JESSE S.;HUTTON WILLIAM C.
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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