Spectacle holder

Details Spectacle holder Spectacle holder

1979-03-02

1981-09-01

Lucas, Susan J.

Photography and optical equipment

Projector or viewer

With provision for transparency magazine

D1606

Patent

active

D02605279

REFERENCES:
patent: D207277 (1967-03-01), Winters
patent: 2549766 (1951-04-01), Benson
patent: 2958495 (1960-11-01), Foster
patent: 3292429 (1966-12-01), Neanhouse
patent: 3866873 (1975-02-01), Bohli
patent: 4011953 (1977-03-01), Engelmann

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