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经营范围
发明名称
Combined inert gas recirculation and tar heater operation
摘要
申请公布号
US2074689(A)
申请公布日期
1937.03.23
申请号
US19280322843
申请日期
1928.11.30
申请人
THE BARRETT COMPANY
发明人
JR. GEORGE THOMAS GAMBRILL,
分类号
C10C1/04;C10C1/16
主分类号
C10C1/04
代理机构
代理人
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地址
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