| 摘要 |
A method of securing metal fasteners to the surface of a glass object, particularly a spectacle lens, which comprises the steps of applying against said surface, with a predetermined and adjustable pressure, a fastener made of a metal adapted to be easily welded to the glass object and consisting of a piece of extruded section shaped as consistent with the manner in which the fastener is to be accomadating subsequently, the glass-engaging base of said fastener accompdating the contour of said glass surface, and the step of vibrating each fastener at a supersonic frequency during a few seconds.
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