{TAIL ~ The vibration device} 1 wherein {HEAD ~ said gripping means} substantially surrounds said workpiece about said peripheral edge 
{ TAIL ~ The vibration device } 1 wherein { HEAD ~ said gripping means } substantially surrounds said workpiece about said peripheral edge
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH