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发明名称
Heat insulated coal mine pipe - has all round prefab. non-corroding steel pipe used as outer protective sheath
摘要
申请公布号
DE3032651(A1)
申请公布日期
1982.05.06
申请号
DE19803032651
申请日期
1980.08.29
申请人
G + H MONTAGE GMBH
发明人
ERKELENZ,KARL-HEINZ;SCHAEFER,AUGUST;LIEBER,MANFRED
分类号
F16L59/18;(IPC1-7):21F3/00
主分类号
F16L59/18
代理机构
代理人
主权项
地址
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