Copper-watcher
Copyright protection for photos and documents using magnetic ele
Cord tamper method and apparatus
Cordless device with battery imbalance indicator
Cordless lanyard system using e-field
Cordless lanyard system using e-field
Cordless machine operation detector
Cordless patient pad
Cordless remote controlled burglar proof device
Cordless/wireless automatic detection and suppression system
Core insert and method of use
Core monitor that uses rotor shaft voltages
Corn and soybean sensor
Corona discharge detection system
Corona reducing apparatus for a submersible electrical fuse
Correlation type flicker flamon
Corrosion detector
Corrosive gas detecting sensor
Cosmic radiation fault detection system
Count discriminating fire detection system