Photography and optical equipment – Projector or viewer – With provision for transparency magazine
Patent
1979-02-05
1982-11-16
Caun, Peter M.
Photography and optical equipment
Projector or viewer
With provision for transparency magazine
D1602
Patent
active
D02669315
REFERENCES:
patent: 2326718 (1943-08-01), Mast
patent: 2484591 (1949-10-01), Rochwite
patent: 2643577 (1953-06-01), Williams
patent: 2674920 (1954-04-01), Bennett
patent: 2834251 (1958-05-01), Romrell
patent: 2897816 (1959-08-01), Williams
Joffe Richard M.
Miller Paul D.
Penney Richard
Caun Peter M.
View-Master International Group
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