Photography and optical equipment – Ophthalmic article
Patent
1987-04-20
1989-11-28
Dunkins, Bruce W.
Photography and optical equipment
Ophthalmic article
D16111
Patent
active
D03048357
REFERENCES:
patent: D172730 (1954-07-01), Teague
patent: D272865 (1984-03-01), Edelmann
patent: 1935634 (1933-11-01), Ives
patent: 2032139 (1936-02-01), Macy
International Projectionist Dec. 1953, p. 3, 3-D Magic-Vuers.
Accessories Oct. 1986, p. 45/Spectacle Publication Boxes.
Dunkins Bruce W.
Heflin Clare E.
Swartz John J.
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