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发明名称
STEENING FOR HEAT DISTRIBUTION NETWORKS
摘要
申请公布号
PL142041(B1)
申请公布日期
1987.09.30
申请号
PL19840246959
申请日期
1984.03.31
申请人
发明人
分类号
F16L;F16L59/02;(IPC1-7):F16L59/02
主分类号
F16L
代理机构
代理人
主权项
地址
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