1524534

Information

• Patent Grant
• 1524534

• References
• Source

• Patent Number

  1,524,534

• Date Filed

  Not available

• Date Issued

  Tuesday, January 27, 1925
  99 years ago

• CPC

  • H01H47/14 - for differential operation of the relay
  • Y10T307/944 - Power circuit controlled

• US Classifications

  • 315 - Electric lamp and discharge devices: systems
  • 307 - Electrical transmission or interconnection systems