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发明名称
Process and means for the degasification of coal and similar materials
摘要
申请公布号
GB359818(A)
申请公布日期
1931.10.29
申请号
GB19310001321
申请日期
1931.01.14
申请人
EDMUND KROPIWNICKI
发明人
分类号
C10B1/04
主分类号
C10B1/04
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代理人
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