Photography and optical equipment – Projector or viewer – With provision for transparency magazine
Patent
1979-04-09
1983-02-01
Kemper, Catherine E.
Photography and optical equipment
Projector or viewer
With provision for transparency magazine
D1603
Patent
active
D02678047
REFERENCES:
patent: D243949 (1977-04-01), Olson
patent: 4010945 (1977-03-01), Kistner
patent: 4164347 (1979-08-01), McGrain
patent: 4264200 (1981-04-01), Tickner et al.
patent: 4300710 (1981-11-01), DuBois et al.
patent: 4304345 (1981-12-01), Carlin
Chiama Bernard A.
Kemper Catherine E.
Xerox Corporation
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