Photography and optical equipment – Projector or viewer – With provision for transparency magazine
Patent
1980-06-25
1982-04-27
Holtje, Nelson C.
Photography and optical equipment
Projector or viewer
With provision for transparency magazine
D1603
Patent
active
D02640929
REFERENCES:
patent: D200129 (1965-01-01), Plantholt
patent: D218199 (1970-07-01), DelVecchio
patent: D225279 (1972-11-01), Matwey
patent: D233843 (1974-12-01), Plume
patent: D234005 (1974-12-01), Yagi
patent: D249521 (1978-09-01), Murai
patent: D255583 (1980-06-01), Goto
patent: 3602639 (1971-08-01), Alden
patent: 3740132 (1973-06-01), Komori
patent: 4247192 (1981-01-01), Komori
DuBois R. Clark
Hamma John C.
Gradco Dendoki, Inc.
Holtje Nelson C.
Lee, Jr. Newton H.
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