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发明名称
Развальцовка для труб
摘要
申请公布号
SU100197(A2)
申请公布日期
1954.11.30
申请号
SU19490404555
申请日期
1949.09.20
申请人
PORTNOV I.M.
发明人
PORTNOV I.M.
分类号
B21D41/02;B21D39/10
主分类号
B21D41/02
代理机构
代理人
主权项
地址
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