Radiant energy testing device for fire detectors

Radio frequency identification (RFID) system

Radio frequency identification static discharge protection

Radio frequency identification static discharge protection

Radio frequency personnel alerting security system and method

Range limited area protection system

Rapid fire emergency response for minimizing human...

Rapid threat response for minimizing human casualties within...

Rapid-mounting security monitoring and controlling system

Real time method for processing alaarms generated within a prede

Redundant process control system

Redundant sensor adapter

Referee's wireless horn indicator system

Reference sample for generating smoky atmosphere

Reflective law enforcement vehicle decoy

Reflective law enforcement vehicle decoy

Relative timing mechanism for event sequencing without clock...

Reliability and workability test apparatus for an environmental

Reminder device

Remote control for battery electrical system tester...