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公开(公告)号：US2529387A
公开(公告)日：1950-11-07
申请号：US76765747
申请日：1947-08-08
Applicant: STORA KOPPARBERGS BERGSLAGS AB
Inventor： ROBERT HAGLUND TURE
IPC: C21C5/34
CPC classification number: C21C5/34
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