Photography and optical equipment – Projector or viewer – With provision for transparency magazine
Patent
1975-09-11
1977-10-04
Holtje, Nelson C.
Photography and optical equipment
Projector or viewer
With provision for transparency magazine
D1605
Patent
active
D02459884
REFERENCES:
patent: D160136 (1950-09-01), Welt
patent: D218196 (1970-07-01), Merino
patent: 2459040 (1949-01-01), Miller
patent: 3712571 (1973-01-01), Miller
patent: 3870265 (1975-03-01), Osborne
patent: 3958787 (1976-05-01), Miller
Holtje Nelson C.
Miller-Universal (AUST) Pty. Ltd.
Waters Eric H.
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