Repair or maintenance of computers; Computer hardware installation and repair, including mobile performance of such services on customer premises

Installation, maintenance and repair of cell phone and related hardware, computer hardware and telecommunications networking hardware, apparatus, and instruments; Maintenance and/or repair of cell phone and related hardware, computer hardware and telecommunications networking hardware, apparatus, and instruments; Repair of electronic apparatus; Repair of cell phone and related hardware, computer hardware and telecommunications networking hardware, apparatus, and instruments; Technical support...