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发明名称
Perfectionnements aux systèmes de lentilles et aux compensateurs optiques
摘要
申请公布号
FR765644(A)
申请公布日期
1934.06.13
申请号
FRD765644
申请日期
1933.11.24
申请人
LEVENTHAL PATENTS, INCORPORATED
发明人
分类号
G03B41/08
主分类号
G03B41/08
代理机构
代理人
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