71548868
Feb 5, 1948
Sep 6, 1949
LOAD RETAINING DOORS AND LOAD RETAINING STRIPS, CONSISTING RESPECTIVELY OF SHEETS AND STRIPS OF PAPER OR OTHER SUITABLE MATERIAL, PREFERABLY REINFORCED WITH METALLIC STRAPPING, FOR BRIDGING ACROSS THE DOORWAYS OR CARGO SPACES OF FREIGHT CARRIERS, SUCH AS RAILWAY BOX CARS, TO CONTAIN LOADS OF MERCHANDISE WITHIN SUCH CARRIERS
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