73008172
Dec 6, 1973
Sep 9, 1975
PORTABLE HAND FIRE EXTINGUISHERS UTILIZING VARIOUS EXTINGUISHING AGENTS; AND DEVICES FOR CONVERTING PORTABLE HAND FIRE EXTINGUISHERS TO AUTOMATIC, UNATTENDED OPERATION
Electrical and Scientific ApparatusDESIGN OF FIRE DETECTION SYSTEMS AND FIRE EXTINGUISHING SYSTEMS TO THE ORDER OF OTHERS, COMPRISING HEAT DETECTORS, SMOKE DETECTORS; FIRE EXTINGUISHING AGENTS, FIXED PIPE DISTRIBUTION NETWORKS FOR FIRE EXTINGUISHING AGENTS, NOZZLES FOR SPRAYING OF FIRE EXTINGUISHING AGENTS, AND THE LIKE
Computer and Scientific