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发明名称
Verres d'optique perfectionnés
摘要
申请公布号
FR922475(A)
申请公布日期
1947.06.10
申请号
FRD922475
申请日期
1946.02.15
申请人
CHANCE BROTHERS LIMITED
发明人
分类号
C03C3/068;C03C3/074
主分类号
C03C3/068
代理机构
代理人
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