Photography and optical equipment – Projector or viewer – With provision for transparency magazine
Patent
1976-05-03
1978-02-14
Burke, Wallace R.
Photography and optical equipment
Projector or viewer
With provision for transparency magazine
D1402, D1899
Patent
active
D02472430
REFERENCES:
patent: D209408 (1967-11-01), Britt et al.
patent: D236850 (1975-09-01), Knodt
patent: D236853 (1975-09-01), Lucker et al.
patent: D240555 (1976-07-01), Cross et al.
Nelson John A.
Patla Jacob W.
Burke Wallace R.
Kemper Catherine E.
Ralabate James J.
Xerox Corporation
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