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发明名称
PERFEZIONAMENTO NEI SISTEMI DI SCAVO E CARICAMENTO
摘要
申请公布号
IT1018939(B)
申请公布日期
1977.10.20
申请号
IT19740052571
申请日期
1974.08.12
申请人
UNIT RIG AND EQUIPMENT CO
发明人
分类号
E02F3/18;E02F3/24;E02F3/76;E02F7/02;(IPC1-7):E02F/
主分类号
E02F3/18
代理机构
代理人
主权项
地址
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