ARIAL
WIRELESS CALL SYSTEM COMPRISED OF A CENTRAL COMPUTER, WIRELESS RECEIVER, NON-LOCATING REPEATER, LOCATING REPEATER, WALL SWITCH, FIXED CALL TRANSMITTER, WIRELESS SMOKE DETECTOR, UNIVERSAL TRANSMITTER, GUARD TOUR TRANSMITTER, DIRECTORY TRANSMITTER, ALPHA-NUMERIC DISPLAY AND UNIVERSAL TRANSMITTER WITH MAGNETIC SWITCH FOR USE IN THE HEALTHCARE INDUSTRY
Registered · July 24, 1998 · 75524339 ·