Photography and optical equipment – Projector or viewer – Element or attachment
Patent
1990-11-05
1994-01-11
Feifer, Melvin B.
Photography and optical equipment
Projector or viewer
Element or attachment
Patent
active
D03431843
REFERENCES:
patent: D217642 (1970-05-01), Blecher
patent: D244023 (1977-04-01), Wilsch et al.
patent: 1901245 (1933-03-01), Jones
patent: 3781103 (1973-12-01), DiPietro
patent: 4204753 (1980-05-01), Kool et al.
patent: 4232953 (1980-11-01), Alvarez
patent: 4418997 (1983-12-01), Johansson
W. Bell Co. Catalog, 1986 p. 320 (Kodak Carousel 5600 200M Projector).
Aronovich Adir
Feifer Melvin B.
Gernstein Terry M.
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