| http://www.w3.org/ns/prov#value | - nk being folded to form a pocket for receiving said tobacco or other substances and a closure flap extending beyond the mouth of said pocket and adapted to be folded around the latter, one wall of said pocket being formed by infolded flaps having the edges thereof heat-sealed to each other and the bottom of said pocket being formed by a triple-ply seam having the plies thereof joined by said therm
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