3686472

Information

• Patent Grant
• 3686472

• References
• Source

• Patent Number

  3,686,472

• Date Filed

  Not available

• Date Issued

  Tuesday, August 22, 1972
  52 years ago

• CPC

  • F24H7/0208 - with electrical energy supply
  • F16K24/04 - for venting only
  • F24D13/02 - solely using resistance heating
  • Y02B30/26 - Radiant panels electrically heated

• US Classifications

  • 219 - Electric heating
  • 392 - Electric resistance heating devices