Photography and optical equipment – Projector or viewer – With provision for transparency magazine
Patent
1976-12-28
1978-11-14
Burke, Wallace R.
Photography and optical equipment
Projector or viewer
With provision for transparency magazine
D1605
Patent
active
D02502674
REFERENCES:
patent: D241273 (1976-08-01), 0kuno et al.
patent: D243082 (1977-01-01), Kramer et al.
Mankau Dieter
Prochnow Claus
Burke Wallace R.
Kemper Catherine
Rollei-Werke Franke & Heidecke
Shepard Charles
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