Deactivation for magnetomechanical marker used in electronic...

Deactivator for theft-deterrent markers

Deactivator using inductive charging

Deactivator using resonant recharge

Defeat resistant burglar alarm contact

Defect inspection system

Demodulation technique for rip detector signals

Depleted liquid supply indicator

Desensitizing apparatus for electromagnetic article...

Detachable fire alarm housing

Detachable potential indicator circuit assembly for...

Detecting damage to bulk material

Detecting device for unlawful take-out of merchandise

Detecting system

Detecting the presence or absence of a coating on a substrate

Detection apparatus for security systems

Detection communication systems

Detection device

Detection device for gas mixtures

Detection device for the edge and/or thickness differentials...