Photography and optical equipment – Projector or viewer – With provision for transparency magazine
Patent
1984-04-24
1986-09-02
Holtje, Nelson C.
Photography and optical equipment
Projector or viewer
With provision for transparency magazine
D16 1
Patent
active
D02854503
REFERENCES:
patent: D247041 (1978-01-01), Fukuda
patent: D270840 (1983-10-01), Soda
patent: D271207 (1983-11-01), Soda
patent: D276050 (1984-10-01), Soda
patent: D279573 (1985-07-01), Agou
patent: D280204 (1985-08-01), Soda
Holtje Nelson C.
Ricoh & Company, Ltd.
Shoup Guy W.
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