Photography and optical equipment – Projector or viewer – With provision for transparency magazine
Patent
1984-09-07
1986-11-04
Holtje, Nelson C.
Photography and optical equipment
Projector or viewer
With provision for transparency magazine
D16 27
Patent
active
D02865424
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patent: D164263 (1951-08-01), Reader
patent: D272251 (1984-01-01), Yoshihama
patent: D276916 (1984-12-01), Masaki
patent: 4218126 (1980-08-01), Takeichi
patent: 4219272 (1980-08-01), Bruckel
patent: 4277162 (1981-07-01), Kasahara
patent: 4386838 (1983-06-01), Hirabayashi
patent: 4432632 (1984-02-01), Yokota
patent: 4478507 (1984-10-01), Miyoshi
patent: 4530588 (1985-07-01), Kimura
patent: 4540268 (1985-09-01), Toyono
Holtje Nelson C.
Ricoh & Company, Ltd.
Shoup Guy W.
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