Photography and optical equipment – Projector or viewer – With provision for transparency magazine
Patent
1984-06-25
1987-01-13
Holtje, Nelson C.
Photography and optical equipment
Projector or viewer
With provision for transparency magazine
D16 1
Patent
active
D02877333
REFERENCES:
patent: D221256 (1971-07-01), Fukuda
patent: D224350 (1972-07-01), Fukuda
patent: D238613 (1976-01-01), Waaske
patent: D257982 (1981-01-01), Maitani
patent: D263056 (1982-02-01), Haitori
patent: 3680455 (1972-08-01), Meinunger
patent: 3741097 (1973-06-01), Fukuda
patent: 4171894 (1979-10-01), Yamada
patent: 4189222 (1980-02-01), Maitani
patent: 4299465 (1981-11-01), Chan
Ago Nobuhiro
Iimura Masayuki
Yamada Tateo
Canon Kabushiki Kaisha
Holtje Nelson C.
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