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经营范围
发明名称
Procédé de carbonisation
摘要
申请公布号
FR972051(A)
申请公布日期
1951.01.25
申请号
FRD972051
申请日期
1940.10.19
申请人
发明人
ZEHNLE;ZEHNLE PIERRE
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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