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GrubAmericana ar Twitter: "On September 20, 1842 Sir James Dewar was born. Inventor of the vacuum flask, also known as Dewars Flask or Thermos. https://t.co/6dUyY166pq" / Twitter
Vacuum flask by Dewar, 1892 C016 / 3685 (Photos Framed, Prints, Puzzles,...) #9204003
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The Thermos Flask - filling a vacuum - Invention - Bite Sized Britain - Britain's amazing history and culture
