Photography and optical equipment – Projector or viewer – With provision for transparency magazine
Patent
1976-08-25
1978-09-19
Burke, Wallace R.
Photography and optical equipment
Projector or viewer
With provision for transparency magazine
D14 43, D1602, D1402
Patent
active
D02495279
REFERENCES:
patent: D203986 (1966-03-01), Cottier et al.
patent: D209636 (1967-12-01), Busch
patent: D224447 (1972-07-01), Catalano et al.
patent: D227599 (1973-07-01), Wisgin
patent: D244073 (1977-04-01), Urbaniec
patent: 3780459 (1973-12-01), Modglin
patent: 3861792 (1975-01-01), Donati
patent: 3981573 (1976-09-01), Schwartz
patent: 4012133 (1977-03-01), Burton
Burke Wallace R.
Isler William
Kemper Catherine
Rappaport Exhibits, Inc.
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