Protective coatings for optical disc information recording media, and methods and apparatus for applying same
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United States of America Patent
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Aug 10, 1999
Grant Date -
N/A
app pub date -
Aug 8, 1997
filing date -
Aug 8, 1997
priority date (Note) -
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Abstract
To protect the optical surface of optical disc information recording media such as a compact disc (CD) or a digital versatile disc (DVD), that surface is coated with a removable layer of a material that does not significantly alter the optical properties of the disc. Whenever the coating layer may have become damaged, it is removed and replaced with a new layer.
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