An actuator and corresponding base assembly, as well as related systems for applying {HEAD ~ a mark} onto {TAIL ~ a surface} 
An actuator and corresponding base assembly , as well as related systems for applying { HEAD ~ a mark } onto { TAIL ~ a surface }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL