[Class : 11] Vacuum Apparatus For Operation Under Low, Medium High, High And Ultrahigh Vacuums; Apparatus For Spraying, Evaporating, Vaporising Or Coating Of Materials Under Vacuum; Apparatus For The Treatment Of Metals In A Vacuum; Vacuum Furnaces; Arc Furnaces; Induction Furnaces, Electron Beam Furnaces And Electroslag Furnaces; Rental Of Equipment And Apparatus .For Vacuu...