Photography and optical equipment – Projector or viewer – With provision for transparency magazine
Patent
1985-03-05
1987-04-21
Holtje, Nelson C.
Photography and optical equipment
Projector or viewer
With provision for transparency magazine
D16 6, 354 64
Patent
active
D02894092
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patent: D275571 (1984-09-01), Carrington
35mm Photography-10/85-p. 9-Cameras at bottom-right.
Canon Kabushiki Kaisha
Holtje Nelson C.
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