After {HEAD ~ removal} of {TAIL ~ the defective circuit pattern sheet} 2′, the first PCB sheet 4 a is position located by means of a position locating means 12 
of
After { HEAD ~ removal } of { TAIL ~ the defective circuit pattern sheet } 2′ , the first PCB sheet 4 a is position located by means of a position locating means 12
OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH