Photography and optical equipment – Projector or viewer – Overhead or opaque type
Patent
1989-08-07
1992-12-29
Shooman, Theodore M.
Photography and optical equipment
Projector or viewer
Overhead or opaque type
D16225
Patent
active
D03321100
REFERENCES:
patent: D244602 (1977-06-01), Mango et al.
patent: D290264 (1987-06-01), Overman et al.
patent: D305904 (1990-02-01), Matsumoto
patent: 3762809 (1973-10-01), Kato et al.
patent: 4795252 (1989-01-01), Kyhl
Aronovich Adir
Shooman Theodore M.
Wolf Audio Visuals
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