Title:
OPTICAL ENCODER
Document Type and Number:
United States Patent 3465099


Inventors:
Harris, George A.
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Sponsored by:
Flash of Genius
Publication Date:
09/02/1969
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Assignee:
FRIDEN INC
Primary Class:
178/17R
Other Classes:
250/237R, 400/477, 341/13, 341/31
International Classes:
H03K17/969; H04L13/16; H03K17/94; H04L13/00; H04L15/16; H04L15/18; H04L15/12
US Patent References:
2408754Photoelectric transmitting typewriter apparatus
2641753Photoelectric keyboard
3104388Keyboard signal generator
3369643Encoding keyboard


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