ES215487A1 - Improvements in the manufacture of diffusing reflector screens (Machine-translation by Google Translate, not legally binding)
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Improvements in the manufacture of diffusing reflector screens (Machine-translation by Google Translate, not legally binding)
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Improvements in the manufacture of diffusing reflecting screens, characterized by a surface turned with the parabolic curve intended to refract light, and in it prismatic and geometric bodies of developments and appropriate bases, arranged tangentially or separately in all or part of the surface ; coating it with a layer of phenolic lacquer, subjecting it to heating in graduated oven from 125º to 150º gradually, letting it cool in it and extracting it and once it is at room temperature. (Machine-translation by Google Translate, not legally binding)
ES215487A1954-05-211954-05-21Improvements in the manufacture of diffusing reflector screens (Machine-translation by Google Translate, not legally binding)
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(en)