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发明名称
Nouveau dispositif de sécurité assurant l'ouverture et la fermeture d'une coque de lunette dans laquelle on a engagé un verre
摘要
申请公布号
FR687131(A)
申请公布日期
1930.08.05
申请号
FRD687131
申请日期
1929.12.23
申请人
CONSORTIUM GENERAL D'OPTIQUE
发明人
分类号
A61F9/02
主分类号
A61F9/02
代理机构
代理人
主权项
地址
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