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G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
G02B7/026—Mountings, adjusting means, or light-tight connections, for optical elements for lenses using retaining rings or springs
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FR920848D1945-10-151945-10-15Mode de montage rapide des lentilles et de l'ensemble diaphragme dans les appareils photographiques ou similaires
ExpiredFR920848A
(fr)
Dispositif permettant de déterminer l'ouverture du diaphragme de l'objectif des appareils de prise de vues photographiques ou cinématographiques
Dispositif destiné aux appareils de prises de vues cinématographiques ou photographiques, permettant de modifier la distance et, l'ouverture du diaphragme ou l'une desdeux pendant la visée