2210380

Information

• Patent Grant
• 2210380

• References
• Source

• Patent Number

  2,210,380

• Date Filed

  Not available

• Date Issued

  Tuesday, August 6, 1940
  84 years ago

• CPC

  • G07F17/28 - for radio apparatus

• US Classifications

  • 346 - Recorders
  • 200 - Electricity: circuit makers and breakers