Sonic monitoring method and apparatus

Sound activated alarm system

Spring-actuated security alarm for a door

Static charge detector having fail-safe voltage surge protection

Static magnetic field metal detector

Strain detection apparatus and method for radiological equipment

Sump water detector with isolated probe having AC applied to its

Supervision of transducers

Swimming pool alarm

Swimming pool alarm system and method with adjustable sensitivit

System and method for facilitating delivery and return service

System and method for improved queuing, service-time, and...

System and method for managing point of care assignments

System and wireless device for providing real-time alerts in...

System for detecting signal quality of a phase-modulated wave

System for detecting water in steam pipes

System for determining a queue sequence for serving customers at

System for disabling the reset circuit of fault indicating means

System for indicating depletion of sliver from a sliver can

System for indicating the status of a hotel or similar room