Photography and optical equipment – Projector or viewer – With provision for transparency magazine
Patent
1980-04-15
1982-09-14
Holtje, Nelson C.
Photography and optical equipment
Projector or viewer
With provision for transparency magazine
D1603
Patent
active
D02661691
REFERENCES:
patent: Re27700 (1973-07-01), Suzuki et al.
patent: Re29632 (1978-05-01), Tanaka
patent: D251912 (1979-05-01), Nakade
patent: 3397627 (1968-08-01), Bruning
patent: 3597074 (1971-08-01), Murgas et al.
patent: 3689146 (1972-09-01), Ito
patent: 3813157 (1974-05-01), Fantozzi
patent: 3861796 (1975-01-01), Tanaka
patent: 4136941 (1979-01-01), Sawaoka
patent: 4268164 (1981-05-01), Yajima
Hara Kunio
Yasutani Shigeki
Holtje Nelson C.
Tokyo Shibaura Denki Kabushiki Kaisha
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