Photography and optical equipment – Projector or viewer – With provision for transparency magazine
Patent
1977-10-22
1978-10-03
Burke, Wallace R.
Photography and optical equipment
Projector or viewer
With provision for transparency magazine
D1603
Patent
active
D02497972
REFERENCES:
patent: D237829 (1975-11-01), Donneux
patent: D237830 (1975-11-01), Van Acker et al.
patent: D240162 (1976-06-01), Matwey
Hudson Walter A.
Jackson Richard W.
Oddo Eugene P.
Seelenbinder Terry G.
Van Acker John J.
Addressograph Multigraph Corporation
Burke Wallace R.
Kemper Catherine
Kondzella Michael A.
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