installation, maintenance, and repair of security and protection systems

'instal':1 'mainten':2 'protect':8 'repair':4 'secur':6 'system':9

security and protection systems comprising anti-intrusion alarms, video monitors, motion sensors, status indicators, communications detectors, communications authorizers, and communications controllers

'alarm':9 'anti':7 'anti-intrus':6 'author':19 'communic':16,18,21 'compris':5 'control':22 'detector':17 'indic':15 'intrus':8 'monitor':11 'motion':12 'protect':3 'secur':1 'sensor':13 'status':14 'system':4 'video':10

research and development of new security and protection products for others; monitoring of and consultation in the field of security and protection systems

'consult':15 'develop':3 'field':18 'monitor':12 'new':5 'other':11 'product':9 'protect':8,22 'research':1 'secur':6,20 'system':23

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