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发明名称
Lentilles à foyers multiples et à axes communs et leur procédé de fabrication
摘要
申请公布号
FR972730(A)
申请公布日期
1951.02.02
申请号
FRD972730
申请日期
1941.04.04
申请人
发明人
CLAVE SERGE;CLAVE MARCEL
分类号
G02B5/18;G02C7/06
主分类号
G02B5/18
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