Photography and optical equipment – Projector or viewer – With provision for transparency magazine
Patent
1978-09-25
1981-10-27
Kemper, Catherine E.
Photography and optical equipment
Projector or viewer
With provision for transparency magazine
D1605
Patent
active
D02615231
REFERENCES:
patent: D247439 (1978-03-01), Asaki
patent: D252209 (1979-06-01), Taylor
patent: 3943532 (1976-03-01), Filippis
patent: 4106077 (1978-08-01), Furda
Conner James M.
Ryan James M.
Kemper Catherine E.
Polaroid Corporation
Roman Edward S.
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