Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – With antiglare or shading
Patent
1997-04-28
2000-08-29
Dang, Hung Xuan
Optics: eye examining, vision testing and correcting
Spectacles and eyeglasses
With antiglare or shading
351 57, G02C 708
Patent
active
061097470
ABSTRACT:
An eyeglass combination includes a primary frame having a bridge and two side studs. An auxiliary frame includes a bridge and two side extensions each having a rear flange for engaging with the stud and for allowing the auxiliary frame to be secured to typical primary frame. The rear flanges each includes a magnet for engaging with another magnet engaged in the studs or for engaging with the studs of magnetic material. The magnets are preferably disposed laterally.
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Pentax Alleged Publication on Twincome.
Contour Optik Inc.
Dang Hung Xuan
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