Photography and optical equipment – Projector or viewer – With provision for transparency magazine
Patent
1977-05-25
1979-01-16
Burke, Wallace R.
Photography and optical equipment
Projector or viewer
With provision for transparency magazine
D48 16A, D1605, D2605
Patent
active
D02508214
REFERENCES:
patent: 1390258 (1921-09-01), Geneste
patent: 3951582 (1976-04-01), Holub et al.
patent: 3993896 (1976-11-01), Wacker
Chipner Russell W.
Schindler Donald R.
Shellko Peter L.
Burke Wallace R.
Fulmer Norman C.
General Electric Company
Kemper Catherine
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