Photography and optical equipment – Projector or viewer – With provision for transparency magazine
Patent
1981-09-10
1984-01-03
Holtje, Nelson C.
Photography and optical equipment
Projector or viewer
With provision for transparency magazine
D16 6, D1601
Patent
active
D02720728
REFERENCES:
patent: D185595 (1959-06-01), Crapsey
patent: D244686 (1977-06-01), Hansen
patent: D248237 (1978-06-01), Fukuda
patent: D248858 (1978-08-01), Fukuda
patent: D254791 (1980-04-01), Hansen
patent: D263477 (1982-03-01), Ainslie
patent: 4064518 (1977-12-01), Douglas
patent: 4316658 (1982-02-01), Bundschuh
Eastman Kodak Company
Holtje Nelson C.
Randall Robert L.
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