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经营范围
发明名称
Heat treating furnace
摘要
申请公布号
US2800317(A)
申请公布日期
1957.07.23
申请号
US19530386834
申请日期
1953.10.19
申请人
IPSEN HAROLD N
发明人
IPSEN HAROLD N.
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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