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发明名称
Dispositif de lunettes à absorption variable
摘要
申请公布号
FR1031699(A)
申请公布日期
1953.06.25
申请号
FRD1031699
申请日期
1950.12.11
申请人
发明人
APARICIO LUIS RODRIGUEZ
分类号
G02C7/08;G02C7/10
主分类号
G02C7/08
代理机构
代理人
主权项
地址
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