1333731

Information

• Patent Grant
• 1333731

• References
• Source

• Patent Number

  1,333,731

• Date Filed

  Not available

• Date Issued

  Tuesday, March 16, 1920
  105 years ago

• CPC

  • H01T11/00 - Spark gaps specially adapted as rectifiers
  • F42B3/02 - adapted to be united into assemblies
  • F42B3/14 - Spark initiators

• US Classifications

  • 313 - Electric lamp and discharge devices