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经营范围
发明名称
Annealing furnace
摘要
申请公布号
US2239523(A)
申请公布日期
1941.04.22
申请号
US19400358431
申请日期
1940.09.26
申请人
HOAK CLARENCE B
发明人
HOAK CLARENCE B.
分类号
C21D9/663
主分类号
C21D9/663
代理机构
代理人
主权项
地址
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