Telegraphy – Systems – Simplex-reversing periodic
Patent
1974-01-22
1976-02-03
Britton, Howard W.
Telegraphy
Systems
Simplex-reversing periodic
178 68, 178 76, 178 15, 178DIG22, 178DIG28, 179 2TV, 3401463SY, G08B 500, H04N 714, H04N 718
Patent
active
039365964
ABSTRACT:
An optical projection apparatus including a projection screen on which a microimage is projected on an enlarged scale and adapted to be connected with an information processing system comprising;
REFERENCES:
patent: 2783454 (1957-02-01), North
patent: 2986596 (1961-05-01), Hammond
patent: 3801741 (1974-04-01), Ablett
patent: 3885096 (1975-05-01), Inviya
Britton Howard W.
Coles Edward L.
Fuji Photo Film Co. , Ltd.
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