2647220

Information

• Patent Grant
• 2647220

• References
• Source

• Patent Number

  2,647,220

• Date Filed

  Not available

• Date Issued

  Tuesday, July 28, 1953
  71 years ago

• CPC

  • G03G13/28 - Planographic printing plates
  • H01J3/029 - Schematic arrangements for beam forming
  • H01J25/14 - with tube-like electron stream coaxial with the axis of the resonators
  • H01J25/26 - in which the electron stream is coaxial with the axis of the resonator or resonators and is tube-like before reflection
  • H01J29/624 - co-operating with or closely associated to an electron gun

• US Classifications

  • 315 - Electric lamp and discharge devices: systems
  • 313 - Electric lamp and discharge devices