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Priority to ES0266597ApriorityCriticalpatent/ES266597A3/en
Publication of ES266597A3publicationCriticalpatent/ES266597A3/en
A PROCESS FOR THE MANUFACTURE OF INASTILLABLE OPTICAL GLASSES, characterized in that the first materials that constitute the basic mixture of the obtaining of the glass, are formed by quartzite, limestone, carbonate and oxide of pure lead, the latter in a ratio of two to four. To said paste, cryolite (Na6 A L2 F 12) will be added in an adequate proportion in accordance with the degree of fusion of the paste. (Machine-translation by Google Translate, not legally binding)
ES0266597A1961-04-151961-04-15A process of manufacture of inastillable optical crystals (Machine-translation by Google Translate, not legally binding)
ExpiredES266597A3
(en)
Improvements in the manufacture of objects constituted by a superior element of glass, coupled to a base (Machine-translation by Google Translate, not legally binding)