1394971

Information

• Patent Grant
• 1394971

• References
• Source

• Patent Number

  1,394,971

• Date Filed

  Not available

• Date Issued

  Tuesday, October 25, 1921
  102 years ago

• CPC

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

• US Classifications

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