97616025
Oct 1, 2022
glass, glass lens blanks, lenses made of glass;, namely, a technical material that changes in response to electronics: chromatic filtering, color, shading, or transparency; glass, glass lens blanks, lenses made of glass;, namely, a technical material coupled to electronics, capable of altering chromatic filtering, color, shading, or transparency
Electrical and Scientific Apparatustreatment of glass, glass lens blanks, or lenses made of glass;, namely, changing glass in response to electronics to alter: its chromatic filtering, color, shading, or transparency
Treatment of Materials