Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Optische Werke G Rodenstock
Original Assignee
Optische Werke G Rodenstock
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Publication date
Application filed by Optische Werke G RodenstockfiledCriticalOptische Werke G Rodenstock
Priority to ES0242446ApriorityCriticalpatent/ES242446A1/en
Publication of ES242446A1publicationCriticalpatent/ES242446A1/en
Optometer for the subjective determination of the refraction in which a test can be moved along a straight guide in front of a collector system whose focus coincides with the front focus of the eye and whose regulation field can be expanded by additional lenses in front of the eye, characterized by a mechanical guide for placing crystals of test glass boxes with objects to extend the measuring field. (Machine-translation by Google Translate, not legally binding)
ES0242446A1958-06-131958-06-13An optometer (Machine-translation by Google Translate, not legally binding)
ExpiredES242446A1
(en)