Photography and optical equipment – Projector or viewer – With provision for transparency magazine
Patent
1977-09-13
1979-09-11
Lucas, Susan J.
Photography and optical equipment
Projector or viewer
With provision for transparency magazine
D1606
Patent
active
D02528827
REFERENCES:
patent: D242854 (1976-12-01), Beane
patent: 3884561 (1975-05-01), Kodys
Optician, Jan. 26, 1973, p. 30-eyeglasses.
American Optical Corporation
Duggan Jeremiah J.
Lucas Susan J.
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