74273202
May 6, 1992
Jun 29, 1993
maintenance services for weather forecasting equipment, installation and maintenance of navigation, communication and radar systems
Building Construction and Repairaviation services; namely, flight safety analysis, analysis of aviation policy and plans, flight standards analysis, environmental research services for the aviation industry, providing air traffic control operation services, radar monitoring operation services, airspace management services, testing and development services for air traffic control operations, weather observation and forecasting services
Computer and Scientific