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发明名称
STEEL SECTION KSZTALTOWNIK STALOWY
摘要
申请公布号
PL108046(B1)
申请公布日期
1980.03.31
申请号
PL19760215752
申请日期
1976.11.09
申请人
发明人
分类号
E21D11/14;E21D11/20;E21D11/22;(IPC1-7):F16S3/00
主分类号
E21D11/14
代理机构
代理人
主权项
地址
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