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发明名称
MEZZO DI CHIUSURA PER GAMBE DI PIATTEFORME DI POZZI SOTTOMARINI
摘要
申请公布号
IT1111806(B)
申请公布日期
1986.01.13
申请号
IT19790020536
申请日期
1979.02.26
申请人
HALLIBURTON CO
发明人
分类号
E02B17/00;E21B33/14;(IPC1-7):E02B/
主分类号
E02B17/00
代理机构
代理人
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