3689852

Information

• Patent Grant
• 3689852

• References
• Source

• Patent Number

  3,689,852

• Date Filed

  Not available

• Date Issued

  Tuesday, September 5, 1972
  52 years ago

• CPC

  • H01J23/005 - Cooling methods or arrangements
  • H01J23/27 - Helix-derived slow-wave structures

• US Classifications

  • 333 - Wave transmission lines and networks
  • 315 - Electric lamp and discharge devices: systems