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发明名称
Dispositif éliminateur de fumée et de gaz pour foyers brûlant du charbon
摘要
申请公布号
FR856819(A)
申请公布日期
1940.08.10
申请号
FRD856819
申请日期
1939.06.23
申请人
发明人
DOAN JOHN ADELBERT
分类号
主分类号
代理机构
代理人
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