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发明名称
Dispositif pour maintenir parfaitement les lunettes sur la figure
摘要
申请公布号
FR1269683(A)
申请公布日期
1961.08.18
申请号
FR19600831931
申请日期
1960.07.04
申请人
发明人
LANGLOIS PIERRE
分类号
G02C3/00
主分类号
G02C3/00
代理机构
代理人
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