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发明名称
Coal treatment
摘要
申请公布号
US2256017(A)
申请公布日期
1941.09.16
申请号
US19370139532
申请日期
1937.04.28
申请人
DONOVAN CURRAN MAURICE
发明人
CURRAN MAURICE DONOVAN
分类号
C10L9/02
主分类号
C10L9/02
代理机构
代理人
主权项
地址
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