Design of alarm systems for detecting, recording, and warning against seismic activity

Alarm monitoring systems; Public address systems; Seismic detectors; Alarm sensors; Electric warning light systems

alarms systems for detecting, recording and warning against seismic activity consisting of seismic sensors, computers, control panels and readout monitors; electronic publications, namely, brochures, pamphlets, reports, directories, and instruction manuals for seismic alarm systems