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经营范围
发明名称
Process of treating carbonaceous material
摘要
申请公布号
US1873910(A)
申请公布日期
1932.08.23
申请号
US19260141339
申请日期
1926.10.13
申请人
COALS AND CHEMICALS LTD.
发明人
TRUMBLE MILON J.
分类号
C10B49/02
主分类号
C10B49/02
代理机构
代理人
主权项
地址
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