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发明名称
TRIVELLA A TAGLIENTI POSITIVI-NEGATIVI PER LA PULIZIA DELLE TUBAZIONI DI SCARICO E FOGNATURE
摘要
申请公布号
ITRO950003(U1)
申请公布日期
1997.05.19
申请号
IT1995RO00003U
申请日期
1995.11.17
申请人
BERGO PAOLA
发明人
BERGO PAOLA
分类号
E21C
主分类号
E21C
代理机构
代理人
主权项
地址
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