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经营范围
发明名称
écrans multicolores soudés en une pièce
摘要
申请公布号
FR834559(A)
申请公布日期
1938.11.24
申请号
FRD834559
申请日期
1938.03.02
申请人
发明人
FILS GEORGES AVRIL
分类号
C03B23/20;C03C17/02
主分类号
C03B23/20
代理机构
代理人
主权项
地址
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