Photography and optical equipment – Ophthalmic article
Patent
1988-06-28
1991-06-25
Holtje, Nelson C.
Photography and optical equipment
Ophthalmic article
Patent
active
D03177718
REFERENCES:
patent: D211413 (1968-06-01), Mitchell
patent: D281507 (1985-11-01), Schremmer
patent: D293450 (1987-12-01), Jannard
patent: D294952 (1988-03-01), Wilson
patent: D295286 (1988-04-01), Takeichi
patent: 4271538 (1981-06-01), Montesi et al.
New Equipment Digest, 9/1968, p. 92, M-S-A visitor goggle.
Hong Kong Enterprise, Jul. 1988, p. 150, Francini frames labeled #'s 3-5.
Coca Cola Sunglasses Heatwave advertising sheet.
Heflin C. E.
Holtje Nelson C.
Wichman William John
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