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经营范围
发明名称
MULTITURN HEATING PIPE
摘要
申请公布号
PL120553(B1)
申请公布日期
1982.03.31
申请号
PL19760188322
申请日期
1976.03.27
申请人
发明人
分类号
F16L53/00;H05B6/10;(IPC1-7):H05B6/10
主分类号
F16L53/00
代理机构
代理人
主权项
地址
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