(under subclass 156) Subject matter relating to instruction in proper speech, including public speaking and corrective training for persons with speech impediments.
SEE OR SEARCH CLASS
600, Surgery,
590, for a diagnostic device placed in a person's mouth to detect the locations where a person's tongue touches the palate during speech in order to determine abnormal speech patterns.
704, Data Processing: Speech Signal Processing, Linguistics, Language Translation, and Audio Compression/Decompression,