74294208
Jul 14, 1992
handheld touchscreen computer for use in communicating information to and receiving information from a central unit via cable television, radio broadcast or telephone line
Electrical and Scientific Apparatusproviding information to clients based on the collecting, recording, measuring and analyzing information derived from a computer based survey or communications system; and, designing, implementing and maintaining custom computer based survey or communications systems made to the order and/or specifications of others
Telecommunications