7 Power Tools for Electrical Contractors-Namely, Compressed Gas, Vacuum and/or Blower-Operated Tools for Installing Pull Lines and Wiring in Conduit or Ducts; Wire Pullers; Missiles and Carriers; Compressed Gas Launchers and Gun Kits Comprising Gun, Guide, Liners, Adaptor, Cartridges and Case; Wire Dispensers, Transporters, Stands and Cart Dispensers; and Industrial Vacuum Cleaners