73535115
Apr 30, 1985
Jun 24, 1986
ELECTRICAL PROTECTION EQUIPMENT SOLD AS A GROUP AND INCLUDING AT LEAST A CONTROL UNIT, A BATTERY AND A TRANSFORMER, AND ALSO, OPTIONALLY, ONE OR MORE OF THE FOLLOWING; A REMOTE KEYPAD OR ARMING STATION, A COMMUNICATOR, A SPEAKER, AND ONE OR MORE SENSORS
Electrical and Scientific Apparatus