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发明名称
TRIVELLA PER LA PERFORAZIONE DEL TERRENO CON UTENSILI FRESANTI
摘要
申请公布号
IT1221596(B)
申请公布日期
1990.07.12
申请号
IT19870009436
申请日期
1987.07.17
申请人
PREVITI PIETRO
发明人
PREVITI PIETRO
分类号
E21B;(IPC1-7):E21B/
主分类号
E21B
代理机构
代理人
主权项
地址
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