Photography and optical equipment – Projector or viewer – With provision for transparency magazine
Patent
1983-07-07
1985-09-17
Holtje, Nelson C.
Photography and optical equipment
Projector or viewer
With provision for transparency magazine
Patent
active
D02806347
REFERENCES:
patent: D251912 (1979-05-01), Nakade
patent: D257984 (1981-01-01), Kurozumi
patent: D260019 (1981-07-01), Onoue
patent: D263146 (1982-02-01), Yamamoto
patent: D263312 (1982-03-01), Nakade
patent: 4327992 (1982-05-01), Babicz
patent: 4364656 (1982-12-01), Yanagawa
patent: 4386845 (1983-06-01), Miyoshi
patent: 4394087 (1983-07-01), Irie
Ricoh Brochure--1/81--FT 4700 Copier on front.
Imada Michio
Toyoguchi Kyo
Holtje Nelson C.
Olympus Optical Company Ltd.
Weinstein Louis
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