Photography and optical equipment – Projector or viewer – With provision for transparency magazine
Patent
1981-04-06
1983-09-06
Holtje, Nelson C.
Photography and optical equipment
Projector or viewer
With provision for transparency magazine
D1601
Patent
active
D02704510
REFERENCES:
patent: D180645 (1957-07-01), Furlani
patent: D245847 (1977-09-01), Bevilacqua
patent: D245848 (1977-09-01), Bevilacqua
patent: D246046 (1977-10-01), Hawthorne
patent: D254181 (1980-02-01), Sakow
patent: D255456 (1980-06-01), Bevilacqua
patent: 3834805 (1974-09-01), Pichierri
patent: 4165168 (1979-08-01), Baumann
patent: 4298269 (1981-11-01), Yoshimaru
Canon Kabushiki Kaisha
Holtje Nelson C.
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