Photography and optical equipment – Projector or viewer – With provision for transparency magazine
Patent
1978-03-08
1980-06-17
Kemper, Catherine E.
Photography and optical equipment
Projector or viewer
With provision for transparency magazine
D1605
Patent
active
D02554577
REFERENCES:
patent: D248859 (1979-08-01), Asaki
patent: 3852790 (1974-12-01), Robinson
patent: 4019190 (1977-04-01), Ohmura
Conner James M.
Van Allen David E.
Caufield Francis J.
Kemper Catherine E.
Polaroid Corporation
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