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发明名称
Improvements in and relating to the protection of iron pipes, tubes, bars or the like
摘要
申请公布号
GB345379(A)
申请公布日期
1931.03.26
申请号
GB19300000841
申请日期
1930.01.09
申请人
J. & OTTO KREBBER, G.M.B.H.
发明人
分类号
F16L58/16
主分类号
F16L58/16
代理机构
代理人
主权项
地址
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