E911 NET
Filed: August 19, 1985
TELECOMMUNICATIONS SERVICES, NAMELY, PROVIDING EMERGENCY COMMUNICATIONS AND DATA BASE NETWORKS
Owned by: NORTHWESTERN BELL CORPORATION
Serial Number: 73554356
SENTINEL
Filed: December 22, 1986
NEWSLETTERS DEALING WITH COMMUNICATIONS SERVICES
Owned by: NORTHWESTERN BELL CORPORATION
Serial Number: 73636515
CENTRON CENTREX SENTINEL
Filed: December 22, 1986
NEWSLETTERS DEALING WITH COMMUNICATIONS SERVICES
Owned by: NORTHWESTERN BELL CORPORATION
Serial Number: 73636724
C-LAN
Filed: January 29, 1987
TELECOMMUNICATION SERVICES
Owned by: NORTHWESTERN BELL CORPORATION
Serial Number: 73641894
UNDERGROUND ALERT
Filed: April 23, 1987
A SERVICE WHICH IDENTIFIES AND INFORMS OTHERS OF BELOW GROUND EQUIPMENT AND FACILITIES
Owned by: NORTHWESTERN BELL CORPORATION
Serial Number: 73656877