Device for rear view vision for spectacles

Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – With rear-view reflectors

Patent

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Details

G02C 714, G02C 904

Patent

active

042982545

ABSTRACT:
A rear view vision mirror attached to a pair of spectacles.

REFERENCES:
patent: 513078 (1894-01-01), Bourns
patent: 1843094 (1932-01-01), Rowan
patent: 2545583 (1951-03-01), La Bard
patent: 2739508 (1956-03-01), Reed
patent: 2917970 (1959-12-01), La Bard
patent: 3498293 (1970-03-01), Oppenheimer

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