• Delphion Intellectual Property Network
  Search patents of the world
  For international patent and us patent information, the Delphion intellectual property network's patent search database helps businesses perform intellectual property monitoring.
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• Wacky Patents and Wacky Gadgets
  
  Wacky patents and wacky gadgets of an unconventional and humorous nature.
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  in Outros Assuntos with diversos gadgets patents wacky

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