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3278319
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Information
Patent Grant
3278319
References
Source
Patent Number
3,278,319
Date Filed
Not available
Date Issued
Tuesday, October 11, 1966
57 years ago
CPC
C03C4/065 - for silver-halide free photochromic glass
Y10S501/90 - Optical glass
US Classifications
501 - Compositions: ceramic
052 - Static structures
065 - Glass manufacturing
252 - Compositions
359 - Optical: systems and elements
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