Photography and optical equipment – Projector or viewer – With provision for transparency magazine
Patent
1981-02-04
1983-02-01
Holtje, Nelson C.
Photography and optical equipment
Projector or viewer
With provision for transparency magazine
D1603
Patent
active
D02678020
REFERENCES:
patent: D251912 (1979-05-01), Nakade
patent: D257984 (1981-01-01), Kurozumi
patent: D260019 (1981-07-01), Onoue
patent: D263312 (1982-03-01), Nakade
patent: D264345 (1982-05-01), Masaki
patent: 3813157 (1974-05-01), Fantozzi
Holtje Nelson C.
Tokyo Shibaura Denki Kabushiki Kaisha
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