This invention relates to {HEAD ~ apparatus} for machining {TAIL ~ workpieces} to a predetermined contour in accordance with a reference pattern 
for machining
This invention relates to { HEAD ~ apparatus } for machining { TAIL ~ workpieces } to a predetermined contour in accordance with a reference pattern
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH