73352969
Mar 4, 1982
Nov 22, 1983
Electronic Golf Car Location Detectors and Alarms-Namely, Electronic Signal Transmitters for Transmitting an Electronic Signal Along a Buried Cable Defining the Perimeter of a Restricted Area and Portable Electronic Signal Receivers Carried by Golf Cars to Trip an Alarm When a Golf Car Crosses the Buried Cable into a Restricted Area
Electrical and Scientific Apparatus