at least two stanchion support assemblies for removably clamping to {HEAD ~ the flange} of {TAIL ~ a construction beam} 
of
at least two stanchion support assemblies for removably clamping to { HEAD ~ the flange } of { TAIL ~ a construction beam }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL