Photography and optical equipment – Projector or viewer – With provision for transparency magazine
Patent
1980-04-14
1982-06-01
Holtje, Nelson C.
Photography and optical equipment
Projector or viewer
With provision for transparency magazine
D1603
Patent
active
D02647257
REFERENCES:
patent: D251912 (1979-05-01), Nakade
patent: 3424526 (1969-01-01), Sacre
patent: 3740132 (1973-06-01), Komori
patent: 3861796 (1975-01-01), Tanaka
patent: 4136941 (1979-01-01), Sawaoka
Canon Kabushiki Kaisha
Holtje Nelson C.
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