1420515

Information

• Patent Grant
• 1420515

• References
• Source

• Patent Number

  1,420,515

• Date Filed

  Not available

• Date Issued

  Tuesday, June 20, 1922
  101 years ago

• CPC

  • H01T1/18 - Electrolytic device structurally associated with spark gap

• US Classifications

  • 361 - Electricity: electrical systems and devices
  • 313 - Electric lamp and discharge devices