Photography and optical equipment – Projector or viewer – With provision for transparency magazine
Patent
1983-01-24
1986-11-25
Ansher, Bernard
Photography and optical equipment
Projector or viewer
With provision for transparency magazine
Patent
active
D02868873
REFERENCES:
patent: D222706 (1971-12-01), Saito et al.
patent: D236157 (1975-07-01), Sakamoto et al.
patent: D270539 (1983-09-01), Horie
patent: D270541 (1983-09-01), Matsuzaka
patent: 3700326 (1972-10-01), Murgas et al.
patent: 3928772 (1975-12-01), Mooney
Okuda Yasuhiro
Serbinski Andrew T.
Ansher Bernard
Pfeffer Terry
Ricoh & Company, Ltd.
Shoup Guy W.
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