2820923

Information

• Patent Grant
• 2820923

• References
• Source

• Patent Number

  2,820,923

• Date Filed

  Not available

• Date Issued

  Tuesday, January 21, 1958
  67 years ago

• CPC

  • H01J25/54 - having only one cavity or other resonator
  • H01J25/58 - having a number of resonators having a composite resonator

• US Classifications

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