Photography and optical equipment – Ophthalmic article
Patent
1980-08-28
1983-04-19
Lucas, Susan J.
Photography and optical equipment
Ophthalmic article
D1606
Patent
active
D02686830
REFERENCES:
patent: D199150 (1964-09-01), Carmichael
patent: 3133982 (1964-05-01), Janz
Optical Journal & Review of Optometry, 4-1-66, p. 12, "Suntimer" Frames #S527S.
American Optical Corporation
Lucas Susan J.
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