Metal detector with circuits for automatically screening out the

Metal detector with nulling of imbalance

Metal detector with spring loaded hinged support

Metal detector, in particular mine detector

Metal locator with stereotonic indication of translateral positi

Metal object locator including frequency shift detector

Metallic cable-locating apparatus and method having an image cap

Metalliferous objects detector having a pair of angularly positi

Method and apparatus for determining direction to and position o

Method and apparatus for digital detection of electronic...

Method and apparatus for digital detection of electronic...

Method and apparatus for digital detection of electronic...

Method and apparatus for displaying signal information from a me

Method and apparatus for distinguishing metal objects...

Method and apparatus for electromagnetically surveying a remote

Method and apparatus for locating a buried element of inductive

Method and apparatus for locating and retrieving a golf ball hav

Method and apparatus for locating buried conductors in the prese

Method and apparatus for locating buried conveyances using locat

Method and apparatus for locating high resistance utility...