Aluminum support useful for lithography
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United States of America Patent
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Apr 15, 1986
Grant Date -
N/A
app pub date -
Mar 15, 1982
filing date -
Mar 15, 1982
priority date (Note) -
Expired
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Abstract
An improved substrate suitable for use as a base for a lithographic printing plate, especially a plate useful for the production of continuous tone images. The substrate is produced by extremely uniformly graining an aluminum sheet which has a highly polished, mirror-like surface.
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