Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – Ophthalmic lenses or blanks
Patent
1998-06-03
2000-03-28
Epps, Georgia
Optics: eye examining, vision testing and correcting
Spectacles and eyeglasses
Ophthalmic lenses or blanks
351172, 523106, G02C 704
Patent
active
060422297
ABSTRACT:
A weight for a hard contact lens, which can be detachably attached to the peripheral edge of a hard contact lens and which has a groove of a shape corresponding to the peripheral edge of the hard contact lens, formed along the inner periphery of the weight.
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patent: 3973837 (1976-08-01), Page
patent: 3973838 (1976-08-01), Page
patent: 4166255 (1979-08-01), Graham
patent: 4786144 (1988-11-01), Epstein
patent: 5623323 (1997-04-01), Johnson et al.
Nakada Kazuhiko
Sugiyama Akihisa
Epps Georgia
Menicon Co. Ltd.
Schwartz Jordan M.
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