(under the class definition) Subject matter relating to devices which enable a handicapped person to communicate with another person.
(1) Note. Excluded from this class and subclass are devices which merely give a signal to the handicapped person upon detection of an obstacle in the person's path.
SEE OR SEARCH CLASS
116, Signals and Indicators, digest 17 for tactile signalling devices.
340, Communications: Electrical,
407.1+, for tactile signals in electrical communication apparatus.
348, Television,
62+, for television aids for the blind. 704, Data Processing: Speech Signal Processing, Linguistics, Language Translation, and Audio Compression/Decompression,
