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发明名称
Carbonizing apparatus
摘要
申请公布号
US1783190(A)
申请公布日期
1930.12.02
申请号
US19250028614
申请日期
1925.05.07
申请人
OLD BEN COAL CORPORATION
发明人
HERTEL OTTO H.
分类号
C10B7/10
主分类号
C10B7/10
代理机构
代理人
主权项
地址
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