Photography and optical equipment – Projector or viewer – With provision for transparency magazine
Patent
1981-04-06
1983-09-13
Holtje, Nelson C.
Photography and optical equipment
Projector or viewer
With provision for transparency magazine
D1603
Patent
active
D02705400
REFERENCES:
patent: D219406 (1970-12-01), Zimmerman
patent: D225777 (1973-01-01), Kakii
patent: D251912 (1979-05-01), Nakade
patent: D257984 (1981-01-01), Kurozumi
patent: D263146 (1982-02-01), Yamamoto
patent: D263312 (1982-03-01), Nakade
patent: D264345 (1982-05-01), Masaki
patent: D266253 (1982-09-01), Horikoshi
patent: 4268164 (1981-05-01), Yajima
patent: 4306802 (1981-12-01), Kucera
patent: 4345834 (1982-08-01), Kimura
British Journal of Photography-5/14/71-p. 453-copier at bottom-left.
Canon Kabushiki Kaisha
Holtje Nelson C.
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