Cases with Industry Code "HT" HEATING, Purpose Code "AAM" Application to change accounting methods, and Status "AR" Archived (2 cases) Case NumberCase TitleOpen DateClosed Date 77-0869-HT-AAMOHIO EDISON COMPANY06/20/197703/29/1978 96-0617-HT-AAMDAYTON POWER & LIGHT CO.06/25/199608/22/1996