1971902

Information

• Patent Grant
• 1971902

• References
• Source

• Patent Number

  1,971,902

• Date Filed

  Not available

• Date Issued

  Tuesday, August 28, 1934
  90 years ago

• CPC

  • H01J25/72 - in which a standing wave or a considerable part thereof is produced along an electrode

• US Classifications

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