Photography and optical equipment – Projector or viewer – With provision for transparency magazine
Patent
1985-09-23
1988-10-25
Holtje, Nelson C.
Photography and optical equipment
Projector or viewer
With provision for transparency magazine
Patent
active
D02982552
REFERENCES:
patent: D276916 (1984-12-01), Masaki
patent: D286297 (1986-10-01), Clowe
patent: D286541 (1986-11-01), Takahashi
patent: D286542 (1986-11-01), Saito
patent: D287023 (1986-12-01), Masaki
patent: 4530588 (1985-07-01), Kimura
Canon Kabushiki Kaisha
Holtje Nelson C.
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