Patent Issued for Method for Cleaning Two Filters of a Suction Device for Cleaning Purposes and Suction Device for Performing the Method

摘要

2013 MAR 27 (VerticalNews) -- By a News Reporter-Staff News Editor at Journal of Engineering -- From Alexandria, Virginia, VerticalNews journalists report that a patent by the inventors Rentschler, Werner (Waiblingen, DE); Engelhardt, Rainer (Leutenbach, DE); Frank, Juergen (Kirchberg, DE); Eckstein, Daniel (Winnenden, DE), filed on October 10, 2011, was cleared and issued on March 12, 2013.