1530290

Information

• Patent Grant
• 1530290

• References
• Source

• Patent Number

  1,530,290

• Date Filed

  Not available

• Date Issued

  Tuesday, March 17, 1925
  99 years ago

• CPC

  • H02H3/427 - using induction relays

• US Classifications

  • 361 - Electricity: electrical systems and devices