In a number of embodiments, {HEAD ~ a separate command} does not have to be sent for reading {TAIL ~ the second code} along with the first code, thereby saving time in inventorying the tags 
In a number of embodiments , { HEAD ~ a separate command } does not have to be sent for reading { TAIL ~ the second code } along with the first code , thereby saving time in inventorying the tags
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH