1531971

Information

• Patent Grant
• 1531971

• References
• Source

• Patent Number

  1,531,971

• Date Filed

  Not available

• Date Issued

  Tuesday, March 31, 1925
  99 years ago

• CPC

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

• US Classifications

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