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发明名称
Chercheur optique pour appareils photographiques ou cinématographiques
摘要
申请公布号
FR52964(E)
申请公布日期
1945.08.27
申请号
FRD52964
申请日期
1943.06.16
申请人
FIDES GESELLSCHAFT FUER DIE VERWALTUNG UND VERWERTUNG VON GEWERBLICHEN SCHUTZRECHTEN MIT BESCHRANKTER HAFTUNG
发明人
分类号
G02B23/14
主分类号
G02B23/14
代理机构
代理人
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