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发明名称
PROCEDIMENTO DI FABBRICAZIONE E FORATURA DI TUBO A PARETE CORRUGATA IN MATERIALE TERMOPLASTICO PER OPERE DI DRENAGGIO TERRENI
摘要
申请公布号
IT1059319(B)
申请公布日期
1982.05.31
申请号
IT19760005128
申请日期
1976.02.25
申请人
PEA LEONE
发明人
分类号
E03F;(IPC1-7):E03F/
主分类号
E03F
代理机构
代理人
主权项
地址
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