Photography and optical equipment – Projector or viewer – With provision for transparency magazine
Patent
1976-03-11
1978-03-07
Burke, Wallace R.
Photography and optical equipment
Projector or viewer
With provision for transparency magazine
D1605
Patent
active
D02474395
REFERENCES:
patent: D199158 (1964-09-01), Monson
patent: D210052 (1968-01-01), Ackerman
patent: D232973 (1974-09-01), Arnoldy et al.
patent: D233912 (1974-12-01), Nagele
patent: D234976 (1975-04-01), Tiffen
patent: 3943532 (1976-03-01), DeFilippis
Baum Walter J.
Burke Wallace R.
International Telephone & Telegraph Corporation
Kemper Catherine E.
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