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发明名称
Procédé de protection des prismes de réfractomètre
摘要
申请公布号
FR935349(A)
申请公布日期
1948.06.16
申请号
FRD935349
申请日期
1946.10.29
申请人
SOCIETE CIVILE D'ETUDES SOPTA
发明人
分类号
C03C17/00
主分类号
C03C17/00
代理机构
代理人
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