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US2012252975A1
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Swell index of HIPS using additives
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Improvements in Pipe or Tube Cutting Appliances.
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Improvements in or relating to Ventilators.
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An Improved Fastening Device, chiefly Designed for Securing Envelopes, Sample-bags, Postal-bags, and the like.
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Improvements in Apparatus for Teaching Model Drawing.
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Improvements relating to Stoppers for Bottles and Jars.
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Manufacture of plaster or cement
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