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发明名称
Способ изготовления труб без шва посредством прокатки на оправке в пилигримном стане
摘要
申请公布号
SU36944(A1)
申请公布日期
1934.05.31
申请号
SU19300066440
申请日期
1930.03.16
申请人
L. KLEJN
发明人
L. KLEJN
分类号
B21B21/02;B21B27/00
主分类号
B21B21/02
代理机构
代理人
主权项
地址
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