A portable programming apparatus is employed for a programmable animal control device carried by an animal having a receiver for receiving a radio signal, a transducer for applying a stimulus to the animal in response to the radio signal, and a programmable controller responsive to selected control parameters...http://www.google.es/patents/US5533469?utm_source=gb-gplus-sharePatente US5533469 - Programming apparatus for programmable animal control device
Programming apparatus for programmable animal control device