Kansas Statutes72-1770 to 72-177972-1770 to 72-1779Chapter 72.--SCHOOLS Article 17.--SUPPLEMENTAL RETIREMENT SYSTEMS 72-1770 to 72-1779. History: L. 1939, ch. 263, §§ 1 to 10; Repealed, L. 1947, ch.363, § 1; June 30.