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发明名称
ROERHAANDTERINGSMASKIN
摘要
申请公布号
NO833957(A)
申请公布日期
1983.10.31
申请号
NO19830003957
申请日期
1983.10.31
申请人
INGRAM CORP,
发明人
BUCKNER, JAMES ELBERT,;MCGUIRE, EARL C.,
分类号
E21B19/14;E21B19/15;(IPC1-7):E21B/
主分类号
E21B19/14
代理机构
代理人
主权项
地址
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