| http://www.w3.org/ns/prov#value | - Wireless twist ties include polymeric material, such as polyethylene terephthalate, polyvinylchloride, styrene-acrylonitrile copolymer and polystyrene and particulate...http://www.google.com/patents/US5238631?utm_source=gb-gplus-sharePatent US5238631 - Process of making non-metallic polymeric twist tiesAdvanced Patent SearchPublication numberUS5238631 APublication typeGrantApplication numberUS 07/
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