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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Individual
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Individual
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Priority to ES0047859UpriorityCriticalpatent/ES47859U/en
Publication of ES47859UpublicationCriticalpatent/ES47859U/en
Transparency viewer apparatus, characterized in that it comprises a box formed by two halves, one of which carries an interior box that forms a lighting box and an electric bulb in said box, while the other carries an opening facing said box in the one that is a ground glass and a sliding mount and provided with a convergent lens, forming an optical system faced with said box when the box is closed. (Machine-translation by Google Translate, not legally binding)
ES0047859U1955-05-061955-05-06Transparency viewer (Machine-translation by Google Translate, not legally binding)
PendingES47859U
(en)
Transmission projector in an illuminated room and on a screen behind the operator's back (Machine-translation by Google Translate, not legally binding)
Cinematºgrafo of toy to see to the light or projected on the screen, films photographic or of drawings (Machine-translation by Google Translate, not legally binding)