RFID reader systems, readers, components, software and methods cause {HEAD ~ RFID tags} to backscatter a combination made from at least portions of a first code and a second code, without transmitting {TAIL ~ any commands} in the interim 
RFID reader systems , readers , components , software and methods cause { HEAD ~ RFID tags } to backscatter a combination made from at least portions of a first code and a second code , without transmitting { TAIL ~ any commands } in the interim
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH