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• n  flask with double walls separated by vacuum; used to maintain substances at high or low temperatures

• vacuum flask

News & Articles

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• Gear guide: Vault full of historical treasures
  OK, so this was going to be a Gear Guide about a vacuum bottle designed to look like a shotgun shell, but after stumbling on this site, I've got to share it as a sort of a late Christmas present.
  Dec. 26, 2013 - Salem Statesman Journal