Percussion musical instruments, namely, snare drums, snare wire units, drum shells, drum kits comprised of drum components, namely, lugs, strainers, butts, and counterhoops

Computer interface boards; Computer network interface devices; Downloadable software for monitoring and controlling communication between computers and automated machine systems; Electronic and optical communications instruments and components, namely, optical data links; Electronic and optical communications instruments and components, namely, optical transceivers; Interfaces for computers; Optical couplers; Peripheral component interface (PCI) hardware