Photography and optical equipment – Projector or viewer – With provision for transparency magazine
Patent
1981-01-26
1984-01-10
Holtje, Nelson C.
Photography and optical equipment
Projector or viewer
With provision for transparency magazine
D1699
Patent
active
D02721554
REFERENCES:
patent: D224941 (1972-10-01), Kanno
patent: D226987 (1973-05-01), Kitagawa
Rolleiflex SL 35E (Brochure) 7/78 Front cover see Prism Cover of Camera.
Holtje Nelson C.
Minolta Camera Kabushiki Kaisha
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