Patent 11475793 - Method and device for reading, writing, and communication by deafblind users > Summary
US Patent
Patent Application No. US 11475793
Published on Oct 18, 2022
Application No. 16/799436
Field on Feb 24, 2020
Classification
International:
G09B 21/04
G09B 21/02;
G06F 3/023;
G10L 15/22;
G10L 13/00;
G10L 15/26;