Baltimore Oct. 2-8 Door & Hardware Institute...

Baltimore

Oct. 2-8 Door & Hardware Institute convention, Baltimore Convention Center, Howard and Pratt streets. Estimated attendance: 4,200. Contact: Mindy Mcallister, 703-222-2010

Oct. 7-11 International Microelectronics & Packing Society convention, Convention Center. Estimated attendance: 7,000. Contact: Richard Breck, 202-548-4001

Oct. 14-16 Association of School Business Officials, Convention Center. Estimated attendance: 3,000. Contact: Don Thorpe, 703- 478-0405

Oct. 16-17 Solid Waste Association of North America trade show, Convention Center. Estimated attendance: 2,000-plus. Contact: Caroline Lacey, 301-585-2898, Ext. 237

Oct. 17-18 Baltimore County Senior Expo, Maryland State Fairgrounds, York and Timonium roads. Estimated attendance: 3,000. Contact: Sue Green, 410- 887-2594