| http://www.w3.org/ns/prov#value | - The frame has sides each designated 5 and ends each designated 7, each of the sides and each of the ends comprising a rail or bar formed of sheet metal strip (e.g. 24 gauge cold rolled steel)having an outside section indicated generally at 9 shaped to function as a beam having strength in bending resistant to forces transverse thereto, more particularly having strength in bending in a generally ho
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