3569667

Information

• Patent Grant
• 3569667

• References
• Source

• Patent Number

  3,569,667

• Date Filed

  Not available

• Date Issued

  Tuesday, March 9, 1971
  53 years ago

• CPC

  • H05B3/00 - Ohmic-resistance heating
  • G05D23/27541 - using expansible solid

• US Classifications

  • 219 - Electric heating
  • 338 - Electrical resistors
  • 392 - Electric resistance heating devices