A system 10 wherein the toothed platen for the forcer is a toothed platen for the magnetic structure, there being no independent toothed platen or {HEAD ~ scale} for {TAIL ~ the magnetic structure} 
for
A system 10 wherein the toothed platen for the forcer is a toothed platen for the magnetic structure , there being no independent toothed platen or { HEAD ~ scale } for { TAIL ~ the magnetic structure }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL