Protuberances within the shelf retainer engage the top edge of the shelf bracket to prevent cutting of the retainer by {HEAD ~ the bracket} in {TAIL ~ the presence} of high stresses 
in
Protuberances within the shelf retainer engage the top edge of the shelf bracket to prevent cutting of the retainer by { HEAD ~ the bracket } in { TAIL ~ the presence } of high stresses
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH