1677689

Information

• Patent Grant
• 1677689

• References
• Source

• Patent Number

  1,677,689

• Date Filed

  Not available

• Date Issued

  Tuesday, July 17, 1928
  95 years ago

• CPC

  • H01J13/04 - Main electrodes Auxiliary anodes
  • H01J2893/0089 - Electrode systems

• US Classifications

  • 315 - Electric lamp and discharge devices: systems
  • 313 - Electric lamp and discharge devices
  • 363 - Electric power conversion systems