AMERICAN TELEPHONE AND TELEGRAPH COMPANY
telephones and telephone systems, comprised of handset and console unit with console features, namely, standard telephone functions, one-touch dialing, call progress monitoring, group listening, clock/calendar and alarm, electronic display, and modules for features, namely, automatic dialing, call restriction, stored message recall, and custom calling; speaker-phones, also known as hand free telephone apparatus
Registered · December 8, 1993 · 74467350 ·