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