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经营范围
发明名称
Process of coking coal
摘要
申请公布号
US2065288(A)
申请公布日期
1936.12.22
申请号
US19310548201
申请日期
1931.07.01
申请人
CARL OTTO
发明人
OTTO CARL
分类号
C10B27/02
主分类号
C10B27/02
代理机构
代理人
主权项
地址
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