Search Results       Your search for [subject]Kern, Willis F., -- jt.a returned 1 record.           K + E slide rules : a self instruction manual. by Kells, Lyman Moorse.; Morristown, N.J.: Keuffel, 1955. Subject: Slide-rule; Kern, Willis F., -- jt.a.          Add to Book Cart Relevance: 33.31%