Photography and optical equipment – Projector or viewer – With provision for transparency magazine
Patent
1975-04-07
1977-02-01
Stearman, Joel
Photography and optical equipment
Projector or viewer
With provision for transparency magazine
D163
Patent
active
D02432382
REFERENCES:
patent: D201321 (1965-06-01), Beck et al.
patent: D201405 (1965-06-01), Plantholt
patent: D230602 (1974-03-01), Kovacs et al.
Eastman Kodak Company
Holmes Paul R.
Rademaker C. A.
Stearman Joel
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