A window wall 5 wherein said frame perimeter and both said horizontal muntins and {HEAD ~ vertical mullions} further include a clamping member and a plurality of {TAIL ~ fasteners} mounting said clamping member to said at least one support member and 
A window wall 5 wherein said frame perimeter and both said horizontal muntins and { HEAD ~ vertical mullions } further include a clamping member and a plurality of { TAIL ~ fasteners } mounting said clamping member to said at least one support member and
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