{HEAD ~ means} for aiming {TAIL ~ said laser beam} at said workpiece comprising a reflector disposed between said laser and said workpiece 
{ HEAD ~ means } for aiming { TAIL ~ said laser beam } at said workpiece comprising a reflector disposed between said laser and said workpiece
HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH