Photography and optical equipment – Projector or viewer – With provision for transparency magazine
Patent
1975-10-17
1977-03-01
Stearman, Joel
Photography and optical equipment
Projector or viewer
With provision for transparency magazine
D1603
Patent
active
D02435225
REFERENCES:
patent: 3751158 (1973-08-01), Komori
patent: D224450 (1972-07-01), Nagata et al.
patent: D230084 (1974-01-01), Nagata
patent: D231129 (1974-04-01), Case et al.
Office Products, May 1973, p. 4, copier at lower left corner of page.
McGlew John J.
Rademaker C. A.
Ricoh Co. Ltd.
Stearman Joel
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