Photography and optical equipment – Projector or viewer – With provision for transparency magazine
Patent
1976-07-22
1978-03-14
Burke, Wallace R.
Photography and optical equipment
Projector or viewer
With provision for transparency magazine
D1603
Patent
active
D02474980
REFERENCES:
patent: D220657 (1971-05-01), Christofferson et al.
patent: 3446552 (1969-05-01), Gross et al.
patent: 3511564 (1970-05-01), Gawin et al.
patent: 3586430 (1971-06-01), Rempala
Industrial Research-Dec. 1967-p. 95-Thomas Micro-Catalogs-Microfiche Reader.
Micro Design RP 650 Reader-Printer Flyer -.COPYRGT. 1976.
Bell & Howell Company
Burke Wallace R.
Kemper Catherine E.
Walsh Robert A.
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