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Application filed by Meopta Narodni PodnikfiledCriticalMeopta Narodni Podnik
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Publication of AT197601BpublicationCriticalpatent/AT197601B/de
G02B13/00—Optical objectives specially designed for the purposes specified below
G02B13/18—Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration