STONE FOR JEWELRY ARTICLES Russian patent published in 2004 - IPC

Abstract RU 2223685 C2

FIELD: jewelry industry. SUBSTANCE: stone body is made from natural or artificial precious stone suitable only for technical or commercial purposes. Stone has structured layer of material applied onto at least one face surface. EFFECT: increased efficiency in using of stones previously used for technical and commercial purposes. 13 cl, 1 dwg

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RU 2 223 685 C2

Authors

Vinter Ehrnst Mikhaehl'

Shafer Lotar

Mattee Torsten

Dates

2004-02-20—Published

1999-04-20—Filed