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