Integrated circuits; Strain gauges; Carrying cases specially adapted for electronic equipment, namely, strain gauges, radio transmitters, and related circuit components; Downloadable computer operating software

Joints for metal tubes being structural parts of engines; shaft couplings as parts of machines; sealing joints being structural parts of machines; flexible shaft couplings being parts of machines

Table napkins of textile; place mats of textile

headphones; earphones; audio receivers; wireless receivers

Medicine balls; exercise weights

protective mouthguards for athletic use