Hand-worn warning device and method
Handbag alarm system
Handheld devices as visual indicators
Handle for a ski-stick
Hard copy tone address paging system
Hazard detection, warning, and response system
Health care signaling device
Heating plant monitor system
Helmet warning device
High current inductive coupler and current transformer for...
High frequency network communications over various lines
High frequency network multiplexed communications over...
High frequency network multiplexed communications over...
High output smoke and heat detector alarm system utilizing a pie
High powered tri-mode light show
High resolution character generator for digital display units
High voltage aerosol detector
High voltage signal coupler for a distribution network power lin
High-efficiency apparatus for measuring operational parameters a
Highly reliable power line communications system