Photography and optical equipment – Projector or viewer – With provision for transparency magazine
Patent
1985-08-09
1988-09-06
Holtje, Nelson C.
Photography and optical equipment
Projector or viewer
With provision for transparency magazine
D14114
Patent
active
D02975432
REFERENCES:
patent: D234603 (1975-03-01), Snow
patent: D236850 (1975-09-01), Knodt
patent: D280416 (1985-09-01), Switser
patent: 3872282 (1975-03-01), Long
patent: 4501485 (1985-02-01), Tsudaka
patent: 4519088 (1985-05-01), Rademacher
patent: 4614862 (1986-09-01), Fisermann
patent: 4668978 (1987-05-01), Gokita
Canon Kabushiki Kaisha
Holtje Nelson C.
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