Photography and optical equipment – Projector or viewer – With provision for transparency magazine
Patent
1977-05-25
1979-02-13
Burke, Wallace R.
Photography and optical equipment
Projector or viewer
With provision for transparency magazine
D1605
Patent
active
D02510910
REFERENCES:
patent: D243339 (1977-02-01), England
patent: 3951582 (1976-04-01), Holub et al.
patent: 3993896 (1976-11-01), Wacker
Schindler Donald R.
Soules Thomas F.
Burke Wallace R.
Fulmer Norman C.
General Electric Company
Kemper Catherine
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