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发明名称
Inside pipe cutter
摘要
申请公布号
US2622679(A)
申请公布日期
1952.12.23
申请号
US19480053476
申请日期
1948.10.08
申请人
RANSOM RUSSELL A
发明人
RANSOM RUSSELL A.
分类号
E21B29/00
主分类号
E21B29/00
代理机构
代理人
主权项
地址
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