Photography and optical equipment – Projector or viewer – With provision for transparency magazine
Patent
1983-01-24
1986-11-18
Ansher, Bernard
Photography and optical equipment
Projector or viewer
With provision for transparency magazine
Patent
active
D02867869
REFERENCES:
patent: D255583 (1980-06-01), Goto
patent: D261145 (1981-10-01), Etoh et al.
patent: D263146 (1982-02-01), Yamamoto
patent: D263312 (1982-03-01), Nakade
patent: D263600 (1982-03-01), Furukawa
patent: 4208122 (1980-06-01), Iwamoto et al.
Ricoh Brochure, 1/81, front cover, FT4700 Copier.
Okuda Yasuhiro
Serbinski Andrew T.
Ansher Bernard
Pfeffer Terry
Ricoh & Company, Ltd.
Shoup Guy W.
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