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发明名称
PERFEZIONAMENTO NEI TUBI PER SCAMBIATORI DI CALORE
摘要
申请公布号
IT1178403(B)
申请公布日期
1987.09.09
申请号
IT19840048716
申请日期
1984.08.10
申请人
SPIRO RESEARCH B.V.
发明人
ROFFELSEN FRANCISCUS
分类号
F28F1/00;F28F1/36;(IPC1-7):F28F/
主分类号
F28F1/00
代理机构
代理人
主权项
地址
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