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发明名称
STRUTTURA TUBOLARE A INTERCAPEDINE POLIGONALE DI VENTILAZIONE PER LA DISTRIBUZIONE SOTTO-TRACCIA DEL GAS DI CITTA' ED ALTRI FLUIDI
摘要
申请公布号
IT1177694(B)
申请公布日期
1987.08.26
申请号
IT19840048138
申请日期
1984.05.04
申请人
RIETTI ANTONIO
发明人
RIETTI ANTONIO
分类号
F16L55/00;F17D1/04;F17D5/08;(IPC1-7):F17D/
主分类号
F16L55/00
代理机构
代理人
主权项
地址
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