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发明名称
Improvements relating to the manufacture of charcoal
摘要
申请公布号
GB563461(A)
申请公布日期
1944.08.15
申请号
GB19440002228
申请日期
1943.01.05
申请人
OSWALD HELLER
发明人
分类号
C10B53/02
主分类号
C10B53/02
代理机构
代理人
主权项
地址
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