PROCEDURE FOR THE PRODUCTION OF JEWELLERY ITEMS, IN PARTICULAR ROPES OR CHAINS, AND ITEMS OBTAINABLE THROUGH SUCH PROCEDURE
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United States of America Patent
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Issued Date -
Apr 16, 2009
app pub date -
Oct 15, 2008
filing date -
Oct 15, 2007
priority date (Note) -
Abandoned
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Abstract
Procedure for making jewellery items such as ropes or chains, which provides for: a step for making a wire at full thickness with an external layer made of precious metal seamed on a support core made of non-precious metal; a coating step of the external layer through winding of adjacent coils of a continuous tape made of precious metal; a diamond-pattern engraving coating step; a step for shaping the wire wound with a diamond-pattern engraved coating, during which the wire is permanently deformed while the coating is deformed less maintaining a stable set of incisions produced by the diamond-pattern engraving operation with an intact shape in a manner to reflect the light in an ideal manner; a step for emptying the core made of non-precious metal through baths in acid solutions.
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