Case Study: Traver Elementary School For over 30 years, Dick Kronwall has been the Maintenance Supervisor at Traver Elementary School, Linn-Bloomfield Joint District No. 4 in Lake Geneva, Wisconsin. Keeping the school clean became much easier four years ago when Kronwall was introduced to Expanded Technologies’ self-adhesive felt pads that stick onto the bottoms of furniture legs to protect the floor from scratches. They also keep the furniture j

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