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经营范围
发明名称
Perfectionnement aux blocs de charbon chimique
摘要
申请公布号
FR1003110(A)
申请公布日期
1952.03.14
申请号
FRD1003110
申请日期
1946.12.05
申请人
发明人
MELINE CONRAD
分类号
C10L11/04
主分类号
C10L11/04
代理机构
代理人
主权项
地址
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