Photography and optical equipment – Projector or viewer – With provision for transparency magazine
Patent
1984-12-07
1987-02-10
Holtje, Nelson C.
Photography and optical equipment
Projector or viewer
With provision for transparency magazine
D16 1
Patent
active
D02882094
REFERENCES:
patent: 3405621 (1968-10-01), Finelli
patent: 3451322 (1969-06-01), Noda
patent: 3768387 (1973-10-01), Hasegawa
patent: 3854142 (1974-12-01), Whitley
patent: 3921189 (1975-11-01), Gallstel
patent: 4420240 (1983-12-01), Katsuma
Hasselblad 500-C Flyer--2/25/60-pp. 1 and 4-5--Camera, Access. & Combined.
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