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经营范围
发明名称
Verre de contact perfectionné
摘要
申请公布号
FR938940(A)
申请公布日期
1948.10.28
申请号
FRD938940
申请日期
1946.04.10
申请人
发明人
DUDRAGNE RAYMOND-ANDRE
分类号
G02C7/04
主分类号
G02C7/04
代理机构
代理人
主权项
地址
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