Photography and optical equipment – Ophthalmic article
Patent
1988-10-26
1991-12-17
Dunkins, Bruce W.
Photography and optical equipment
Ophthalmic article
D16103, D16123, D16126
Patent
active
D03224457
REFERENCES:
patent: D171852 (1954-03-01), Hoffmaster
patent: D279516 (1985-07-01), Bieder
patent: D309508 (1990-07-01), Sugita
patent: 1258097 (1918-03-01), Day
patent: 2300365 (1942-10-01), Wagner
patent: 2368303 (1945-01-01), Johnston
patent: 2568316 (1951-09-01), Brown
patent: 4122847 (1978-10-01), Craig
patent: 4288878 (1981-09-01), Helmbreck
Dunkins Bruce W.
Hannon Monica
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