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Vortex Ring Gun Shoots Tear Gas & Pepper Spray
- Published_at:2012-03-06
- Category:News & Politics
- Channel:LeakSourceArchive
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- description: 03/05/2012 Vortex guns capable of firing doughnut-shaped rings of air have sat around as toys or oddball gadgets for years. Now a U.S. lab has added an extra kick with electrically charged rings that could clear out smoke-filled hallways for...
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