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发明名称
Lunette métallique, pince-nez ou analogue, recouverts d'une pellicule cellulosique ou similaire et procédé les réalisant
摘要
申请公布号
FR775244(A)
申请公布日期
1934.12.21
申请号
FRD775244
申请日期
1933.09.20
申请人
FRANCOIS BRET & FILS
发明人
分类号
G02C1/06;G02C5/00
主分类号
G02C1/06
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代理人
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