Photography and optical equipment – Projector or viewer – With provision for transparency magazine
Patent
1976-01-08
1977-02-15
Mercer, Susie J.
Photography and optical equipment
Projector or viewer
With provision for transparency magazine
D1606
Patent
active
D02433974
REFERENCES:
patent: D231562 (1974-04-01), Switkes
patent: 3664734 (1972-05-01), Rivoire
Optical Journal & Review of Optometry, Apr. 15, 1973, p. 51, "Barone" Frames.
Optician (England) Mar. 8, 1974, p. 15, Frames Model 2805.
American Optical Corporation
Mercer Susie J.
Nealon William C.
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