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