Photography and optical equipment – Projector or viewer – With provision for transparency magazine
Patent
1976-10-29
1980-02-12
Burke, Wallace R.
Photography and optical equipment
Projector or viewer
With provision for transparency magazine
D1603
Patent
active
D02541815
REFERENCES:
patent: D227931 (1973-07-01), Dalton et al.
patent: D235230 (1975-05-01), Herr et al.
patent: D239659 (1976-04-01), Katayama et al.
patent: 3743406 (1973-07-01), Komori et al.
patent: 3867026 (1975-02-01), Ogawa
Ishihara Sadao
Katayama Isao
Sakow Toshihiko
Burke Wallace R.
Gross Meyer A.
Kemper Catherine
Minolta Camera Kabushiki Kaisha
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