Plow windrow interruption by use of {HEAD ~ a folding auxiliary blade} that is designed to overlay {TAIL ~ a portion} of the plow main blade 
Plow windrow interruption by use of { HEAD ~ a folding auxiliary blade } that is designed to overlay { TAIL ~ a portion } of the plow main blade
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH