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Filing date
Publication date
Application filed by Philips NvfiledCriticalPhilips Nv
Application grantedgrantedCritical
Publication of AT199058BpublicationCriticalpatent/AT199058B/de
AT199058D1955-10-011956-09-28Filmprojektor, bei dem der Objektivhalter zur Scharfeinstellung mittels einer Einstellvorrichtung bewegbar ist
AT199058B
(de)