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发明名称
ERDVERLEGTE ROHRLEITUNG FUER FERNHEIZUNGEN
摘要
申请公布号
AT369879(B)
申请公布日期
1983.02.10
申请号
AT19790008029
申请日期
1979.12.20
申请人
GFERER JOSEF
发明人
分类号
F16L59/12;F16L59/20;F16L59/21;F16L59/22;(IPC1-7):F16L59/14;F16L51/00
主分类号
F16L59/12
代理机构
代理人
主权项
地址
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