Photography and optical equipment – Projector or viewer – With provision for transparency magazine
Patent
1984-09-13
1987-07-07
Holtje, Nelson C.
Photography and optical equipment
Projector or viewer
With provision for transparency magazine
Patent
active
D02907127
REFERENCES:
patent: D154985 (1949-08-01), Bouchetal
patent: D221025 (1971-06-01), Fakuda
patent: D229977 (1974-01-01), Nakanishi
patent: D271880 (1983-12-01), Agou
patent: D271881 (1983-12-01), Kato
patent: D280204 (1985-08-01), Soda
patent: D284579 (1986-07-01), Io
patent: D285449 (1986-09-01), Soda
patent: 4589747 (1986-05-01), Nakayama
Richoh (FF 3D AF Camera) Japanese Flyer 1983--Camera at bottom-right.
Holtje Nelson C.
Wizen Industry Co., Ltd.
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