Photography and optical equipment – Projector or viewer – With provision for transparency magazine
Patent
1983-07-22
1986-04-29
Holtje, Nelson C.
Photography and optical equipment
Projector or viewer
With provision for transparency magazine
D16 38
Patent
active
D02836246
REFERENCES:
patent: D201158 (1965-05-01), Wessels
patent: D246372 (1977-11-01), Yoshino
patent: D265321 (1982-07-01), Schreiber
patent: 4167314 (1979-09-01), Ichiyanagi
patent: 4294530 (1981-10-01), Iwashita
patent: 4367937 (1983-01-01), Mashimo
Hattori Yasuo
Maitani Yoshihisa
Holtje Nelson C.
Olympus Optical Co,. Ltd.
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