71507887
Aug 23, 1946
Nov 18, 1947
MECHANICAL PACKINGS, SHEET PACKINGS, ROD PACKINGS, VALVE PACKINGS, PACKING RINGS, AND GASKETS, MADE OF ASBESTOS, FIBRE, RUBBER, SYNTHETIC PLASTIC, TEXTILE MATERIAL, AND/OR COMBINATIONS THEREOF INCLUDING METALLIC REINFORCEMENTS THEREIN
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