Pure Power Announces Third Patent for Cleanable and Reusable Filtration Devices

http://photos.prnewswire.com/prnc/20130628/CG40119MINNEAPOLIS, June 28, 2013 /PRNewswire-iReach/ -- "In reviewing PPI's US Patent #8,439,204; it appears to be the most comprehensive patent to date for cartridge-style cleanable and reusable filtration devises. The economical and performance benefits of this type of filter are impressive,"...



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