{HEAD ~ This manufacturing efficiency} eliminates {TAIL ~ numerous and excessive prior art components} normally used in the manufacture of sound dampening systems for window sash balances 
eliminates
{ HEAD ~ This manufacturing efficiency } eliminates { TAIL ~ numerous and excessive prior art components } normally used in the manufacture of sound dampening systems for window sash balances
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH