FINDERFONE
Filed: January 17, 1972
TELEPHONE COMMUNICATION EQUIPMENT, INCLUDING TELEPHONES AND RESPONDERS FOR LOCATING PERSONNEL IN A BUILDING OR GROUP OF…
Owned by: RECOGNITION DEVICES, INC.
Serial Number: 72412774
TRAKAFONE
Filed: March 20, 1972
PERSONNEL LOCATING DEVICE FOR INCORPORATING INTO A TELEPHONE SYSTEM
Owned by: RECOGNITION DEVICES, INC.
Serial Number: 72418800
TRAKASCAN
Filed: March 20, 1972
ELECTRONIC DEVICES FOR LOCATING PERSONNEL WITHIN CERTAIN AREAS
Owned by: RECOGNITION DEVICES, INC.
Serial Number: 72418921
TRAKAPEN
Filed: October 19, 1972
PORTABLE RECEIVER FOR PERSONNEL LOCATION
Owned by: RECOGNITION DEVICES, INC.
Serial Number: 72438806
PEN-PAGE
Filed: October 30, 1972
ULTRASONIC PERSONNEL PAGING UNIT
Owned by: RECOGNITION DEVICES, INC.
Serial Number: 72439691
