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Individual
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Individual
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Priority to ES0218464ApriorityCriticalpatent/ES218464A3/en
Publication of ES218464A3publicationCriticalpatent/ES218464A3/en
Improvements in the interior adjustment projectors, characterized in that a single coupling comprises the combination of an optical block (glass and reflector) and a regulating crown that surrounds it, this block carrying both its regulation and demarcation organs in position and its gripping members on a fixed point and on a retaining spring. (Machine-translation by Google Translate, not legally binding)
ES0218464A1954-11-161954-11-16Improvements in internal regulation projectors (Machine-translation by Google Translate, not legally binding)
ExpiredES218464A3
(en)
Improvements in the optical instruments of great reach, such as telescopes, goggles and similar (Machine-translation by Google Translate, not legally binding)