73129703
Jun 9, 1977
Nov 28, 1978
MANUAL OR AUTOMATIC FIRE EXTINGUISHING SYSTEMS COMPRISING ONE OR MOREPRESSURIZED METAL CYLINDERS CONTAINING AHALOGENATED GASEOUS FIRE EXTINGISHING AGENT, RELEASABLE THEREFROM, VALVES, PIPING, DISCHARGE NOZZLES, AND FIRE DETECTORS; AND PARTS THEREFOR
Electrical and Scientific Apparatus