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发明名称
Draft control apparatus for furnaces
摘要
申请公布号
US1921763(A)
申请公布日期
1933.08.08
申请号
US19320609920
申请日期
1932.05.07
申请人
BEEMACK FURNACE COMPANY
发明人
MACDOUGALL ROBERT
分类号
C23D9/00;C23D9/04;C23D9/08;C23D9/10;F27B9/24
主分类号
C23D9/00
代理机构
代理人
主权项
地址
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