(1980)Cleveland Electrical/Electronics Conference and Exposition Cleveland Electrical/Electronics Conference and Exposition (1981)International Electrical Electronics Conference and Exposition International Electrical Electronics Conference and Exposition International Electrical Electtronics Conference and Exposition (Toronto)International Electrical Electronics Conference and Exposition International Electrical Elecrtonics Conference and Esposition (Tornoto)International Electrical Elecrtonics Conference and Esposition 1969 western metal & conference and expostion (Ottawa)Electrical and Electronic Measurement and Test Instrument Conference and Exposition