Method and apparatus for hair color characterization and treatment
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United States of America Patent
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-
Dec 11, 2001
Issued Date -
N/A
app pub date -
Sep 29, 1997
filing date -
Jul 18, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Methods and apparatus for determining accurate hair color classifications and appropriate coloring agents to bring about a selected change of color include a table of hair color classifications, a color measuring instrument to arrive at Hunter L, a and b for use in identifying a particular classification from the table and a database that identifies appropriate coloring agents based on a selection of coloring actions from a menu and the classifications of hair color.
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