Photography and optical equipment – Projector or viewer – With provision for transparency magazine
Patent
1976-03-24
1977-11-29
Holtje, Nelson C.
Photography and optical equipment
Projector or viewer
With provision for transparency magazine
D1605
Patent
active
D02465280
REFERENCES:
patent: D160136 (1950-09-01), Welt
patent: 2459676 (1949-01-01), Axtell
patent: 3353776 (1967-11-01), Clemens
patent: 3712571 (1973-01-01), Miller
patent: 3870265 (1975-03-01), Osborne
patent: 3958787 (1976-05-01), Miller
patent: 4010923 (1977-03-01), Miller
Holtje Nelson C.
Miller-Universal (Aust.) Pty. Ltd.
Waters Eric H.
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