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发明名称
Annealing stem
摘要
申请公布号
US2334439(A)
申请公布日期
1943.11.16
申请号
US19420444862
申请日期
1942.05.28
申请人
NATIONAL STANDARD COMPANY
发明人
PIERCE ROBERT C.
分类号
C21D9/00
主分类号
C21D9/00
代理机构
代理人
主权项
地址
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