Brightening method
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United States of America Patent
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-
Feb 26, 1991
Grant Date -
N/A
app pub date -
May 23, 1990
filing date -
May 26, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A brightening method for parts of aluminum or aluminum alloy is described which is characterized, in particular, by the fact that the parts are treated in an alkaline electrolyte, operated with direct current, preferably having the composition
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