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经营范围
发明名称
PIPELINE IN PARTICULAR THAT FOR HEAT TRANSMISSION
摘要
申请公布号
PL147416(B1)
申请公布日期
1989.05.31
申请号
PL19840249565
申请日期
1984.09.11
申请人
发明人
分类号
F16L;F16L51/00;(IPC1-7):F16L51/00
主分类号
F16L
代理机构
代理人
主权项
地址
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