(c) special purpose instrumentation and equipment; sale of instruments; sale of equipment; sale of equipment; sale of equipment; sale of equipment; sale of equipment; sale of equipment; sale of equipment; sale of equipment; sale of equipment; sale of equipment; sale of equipment; sale of equipment; sale of equipment; sale of equipment; sale of equipment; sale of equipment; sale of equipment; sale of equipment; sale of equipment; sale of equipment; sale of equipment; sale of equipment; sale of equipment; sale of equipment; sale of equipment; sale of equipment; sale of equipment; sale of equipment; sale of equipment; sale of equipment; sale of equipment; sale of equipment; sale of equipment; sale of equipment; sale of equipment; sale of equipment; sale of equipment; sale of equipment; sale of equipment; sale of equipment; sale of equipment; sale of equipment; sale of equipment; sale of equipment; sale of equipment; sale of equipment; sale of equipment; sale of equipment; sale of equip...