Photography and optical equipment – Projector or viewer – With provision for transparency magazine
Patent
1979-11-01
1982-04-20
Holtje, Nelson C.
Photography and optical equipment
Projector or viewer
With provision for transparency magazine
D1604
Patent
active
D02639637
REFERENCES:
patent: D190603 (1961-06-01), Zagara
patent: D200823 (1965-04-01), Wells
patent: D202306 (1965-09-01), Vigna
patent: D223055 (1972-03-01), Vigna
patent: D226332 (1973-02-01), Robbins
patent: D233700 (1974-11-01), McClare
patent: D249529 (1978-09-01), Gilligan
patent: 3136237 (1964-06-01), Moon
patent: 3547531 (1970-12-01), Wells
Rabold Lutz
Schlagheck Norbert
Schultes Herbert
Agfa-Gevaert AG
Holtje Nelson C.
Striker Michael J.
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