Bar code printers; Bar code readers; Bar code scanners; Barcode scanner; Barcode scanners; Carpenters' folding rules; Carpenters' rules; Electronic apparatus, namely, motion detectors; Gas testing instruments; Lightning arresters; Metal detectors; Metal detectors for industrial or military purposes; Metal grounding bushings and metal grounding clamps, both for use only as parts and fittings for coaxial cable, and not for non-electric cable or machinery or machine parts; Metal hardness testing...