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发明名称
Valve control system for blast furnace stoves
摘要
申请公布号
US2601979(A)
申请公布日期
1952.07.01
申请号
US19480002066
申请日期
1948.01.13
申请人
KOPPERS COMPANY, INC.
发明人
RICE OWEN R.;WHITCOMB ARTHUR J.
分类号
C21B9/12
主分类号
C21B9/12
代理机构
代理人
主权项
地址
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