FASTENING DEVICE (OPTIONS), END FITTING OF A FASTENING DEVICE (OPTIONS)

摘要

FIELD: jewellery industry.;SUBSTANCE: invention relates to jewellery industry, namely, to devices for connecting parts of a product. A fastening device for jewellery includes two ends having a connecting element comprising two ends, the edges of which are made on the basis of a straight triangular prism or a straight quadrangular pyramid.;EFFECT: invention is aimed at improving the reliability of preventing the detachment of elements from each other.;12 cl, 15 dwg