Direction indicating fault indicators
Direction signage system
Direction signage system
Direction-sensing acoustic glass break detecting system
Directional antenna configuration for asset tracking system
Directional detector of changes in a local electrostatic field
Directional trailer turning signaling device
Dirty filter indicator
Disablement of camera functionality for a portable device
Disablement of camera functionality for a portable device
Disarmable magnetic anti-shoplifting marker
Disaster lighting system for railroad cars
Disaster noticing system, disaster noticing server, disaster...
Disaster prevention monitoring apparatus
Disaster prevention monitoring apparatus and method
Disaster recovery virtual roll call and recovery management...
Disaster vulnerability assessment in buildings
Discreet bed-wetting alarm and method of use thereof
Discreet intelligence system
Discriminating earthquake detector