MINNEAPOLIS--(BUSINESS WIRE)--Tennant Company (NYSE: TNC), a world leader in designing, manufacturing and marketing solutions that help create a cleaner, safer, healthier world, announced that the Orbio os3 system—developed and marketed through its Orbio Technologies Group—was named one of the Top 10 Products of 2014 by American School & University Magazine. This award joins other honors recently given to the os3 system, including the 2014 ISSA Innovation Award in the Dispensers category an