{TAIL ~ Such a geo location tracking system} may be of the type described in {HEAD ~ the U.S. Patent} to D. Belcher et al, 
{ TAIL ~ Such a geo location tracking system } may be of the type described in { HEAD ~ the U.S. Patent } to D. Belcher et al ,
TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH