Brown glass which absorbs ultraviolet radiation
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United States of America Patent
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-
Apr 11, 2000
Grant Date -
N/A
app pub date -
Apr 14, 1998
filing date -
Dec 21, 1995
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention relates to brown glasses which absorb ultraviolet radiation that are used in the production of ophthalmic sun glasses, and that have the following composition, expressed in wt. %:
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