Photography and optical equipment – Projector or viewer – With provision for transparency magazine
Patent
1981-11-16
1984-04-17
Holtje, Nelson C.
Photography and optical equipment
Projector or viewer
With provision for transparency magazine
D16 1
Patent
active
D02734990
REFERENCES:
patent: D234542 (1975-03-01), Quinn
patent: D241167 (1976-08-01), Woodring
patent: D244055 (1977-04-01), Shimano
patent: D244851 (1977-06-01), Masuyama
patent: D244932 (1977-07-01), Fukuda
patent: D245986 (1977-10-01), Fukuda
patent: D246652 (1977-12-01), Ooya
patent: D246717 (1977-12-01), Ooya
patent: D259492 (1981-06-01), Swafe
patent: 4079395 (1978-03-01), Filippis
Hanimex Pty. Limited
Holtje Nelson C.
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