3277272

Information

• Patent Grant
• 3277272

• References
• Source

• Patent Number

  3,277,272

• Date Filed

  Not available

• Date Issued

  Tuesday, October 4, 1966
  58 years ago

• CPC

  • F24D13/04 - using electric heating of heat-transfer fluid in separate units of the system
  • F24D3/00 - Hot-water central heating systems
  • F24H3/004 - with a closed circuit for a heat transfer liquid

• US Classifications

  • 392 - Electric resistance heating devices
  • 219 - Electric heating
  • 237 - Heating systems