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发明名称
TRIVELLA PER PERFORAZIONI IN GENERE CON GUIDA DI SCORRIMENTO APPLICATE DIRETTAMENTE SUL GRUPPO DELLE ASTE TELESCOPICHE AD INNESTO AUTOMATICO
摘要
申请公布号
IT1172783(B)
申请公布日期
1987.06.18
申请号
IT19830044001
申请日期
1983.01.11
申请人
I M T SRL
发明人
ACCORRONI GIULIO
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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