Washington Convention

For additional Baltimore convention information, call Courtney McKeldin at 659-7133 (local) or (800) 343-3468 (out of state).JULY 23-28: Great American Firehouse Exposition & Muster at the Convention Center. Contact Shirley Sills or Barbara Schubnel, 445 Broad Hollow Road, Melville, N.Y. 11747. Expected attendance: 7,000.AUG. 1-4: Kidscon at the Hyatt Regency. Contact Jacqui Jeffrey, 18351 Beach Blvd., Suite K, Huntington Beach, Calif. 92648. Expected attendance: 1,000.AUG. 15-17: Maryland State Dental Association at the Stouffer Harborplace Hotel.