Plural search frequency directional metal detector apparatus hav
Portable buried object detection system with error reducing sign
Portable metal detection and classification system
Portable transmitter apparatus for inducing alternating current
Portable, buried object detection system with improved signal pr
Position and orientation locator/monitor
Position and orientation locator/monitor
Position and orientation locator/monitor
Position and orientation locator/monitor
Position and orientation locator/monitor
Position and orientation locator/monitor
Positioning, detection and communication system and method
Pre-amplifier and mixer circuitry for a locator antenna
Probe carrier for detecting mines or other foreign objects which
Procedure and device for radiating and detecting the...
Process for detecting metallic items including a search path def
Process for electromagnetic detection of conducting objects
Pulse induction time domain metal detector
Pulse radar method and apparatus for detecting an object
Radio mode selectivity block for a detector for detecting a...