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经营范围
发明名称
Improvements in and relating to the treatment of pigments
摘要
申请公布号
GB355503(A)
申请公布日期
1931.08.27
申请号
GB19300024423
申请日期
1930.08.14
申请人
COMPAGNIE LORRAINE DE CHARBONS POUR L'ELECTRICITE
发明人
分类号
C09C1/44
主分类号
C09C1/44
代理机构
代理人
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地址
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