FIG 23 depicts the use of {HEAD ~ movable safety barrier system} 70 on {TAIL ~ one side} of the roof 15 or peak of a building 24 
on
FIG 23 depicts the use of { HEAD ~ movable safety barrier system } 70 on { TAIL ~ one side } of the roof 15 or peak of a building 24
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH