Title:
COMMUNICATION SYSTEM FOR THE HANDICAPPED
United States Patent 3507376

Inventors:
Kafafian, Haig
Publication Date:
04/21/1970
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Assignee:
Haig, Kafafian
Primary Class:
400/87
Other Classes:
400/477, 400/474, 178/101, 341/21, 340/825.190
International Classes:
A61F4/00; B41J7/00; G06F3/09; B41J5/10
US Patent References:
2981395Operator mechanism for the control of the automatic operation of a series of successive individually selected operational steps in business, calculating and similar machines
3022878Communication device
3158318
3166856Educational device
3234664Training apparatus
3241115Control systems for use by partially or totally paralyzed persons
3280267Cross-wire control circuit arrangement for communication systems
3308439On-line system
3375497Matrix control circuitry using gate controlled unidirectional signalling devices




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