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Publication of GEU2000682YpublicationCriticalpatent/GEU2000682Y/en
1. Technical Result Increase in efficiency. 2. Essence A device comprises a body and a test-object, whereas, the test-object is made in the form of an acute angled octagon. 3. Field of Application Ophthalmology. Figures: 1
GEAU19990008061998-12-181999-12-15Device for Training of Eyesight
GEU2000682Y
(en)