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