Sono-Tek Announces Record Sales of $15.3 Million and Record Net Income of $1.1 Million for Fiscal Year 2020 and Provides First Quarter FY2021 Sales Guidance and FY2021 Outlook Record Yearend Backlog of $3.5 Million for Fiscal Year 2020 Strong demand in leading markets drove a sales increase of 32.3% over fiscal 2019 to $15.3 million with gross margin of 48%, a 240...