2469990

Information

• Patent Grant
• 2469990

• References
• Source

• Patent Number

  2,469,990

• Date Filed

  Not available

• Date Issued

  Tuesday, May 10, 1949
  75 years ago

• CPC

  • H05B6/52 - Feed lines

• US Classifications

  • 219 - Electric heating
  • 331 - Oscillators