COMPONENT FOR A TIMEPIECE MOVEMENT
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United States of America Patent
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Issued Date -
Jan 25, 2018
app pub date -
Jul 18, 2017
filing date -
Jul 19, 2016
priority date (Note) -
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Abstract
The invention relates to a pivot arbor (1) for a timepiece movement comprising at least one pivot (3) made of a first non-magnetic metal material (4) at at least one of the ends thereof in order to limit the sensitivity thereof to magnetic fields, at least the outer surface of said pivot (3) being coated with a first layer (5) of a second material selected from the group comprising Ni, NiB and NiP, and preferably chemical NiP. At least the first layer (5) of second material is at least partially coated with a second layer (6) of a third material selected from the group comprising gold, silver, copper, platinum, rhodium, palladium and their alloys.
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