May 21, 2020 - Walter N. Welsch, founder of Clarence, New York based power tool manufacturer, Dynabrade, Inc. died May 16, 2020. He was 96. Born in St. Paul, Minnesota, one of nine children, he graduated from St. John’s University in Collegeville, Minnesota. In 1951, he joined the Minnesota-based abrasive manufacturer, 3M where he was a sales