Photography and optical equipment – Projector or viewer – With provision for transparency magazine
Patent
1985-05-13
1987-08-11
Holtje, Nelson C.
Photography and optical equipment
Projector or viewer
With provision for transparency magazine
D14106
Patent
active
D02913216
REFERENCES:
patent: D254868 (1980-04-01), Hoadley
patent: D262705 (1982-01-01), Goodin
patent: D264475 (1982-05-01), Grote
patent: D272353 (1984-01-01), Dillon
patent: D273191 (1984-03-01), Oyama
patent: 2518209 (1950-08-01), Whipple
patent: 2559858 (1951-07-01), Elle
Canon Kabushiki Kaisha
Holtje Nelson C.
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