2813683

Information

• Patent Grant
• 2813683

• References
• Source

• Patent Number

  2,813,683

• Date Filed

  Not available

• Date Issued

  Tuesday, November 19, 1957
  67 years ago

• CPC

  • F24D19/1066 - for the combination of central heating and domestic hot water
  • F24D3/087 - Tap water heat exchangers specially adapted therefore

• US Classifications

  • 237 - Heating systems
  • 236 - Automatic temperature and humidity regulation
  • 392 - Electric resistance heating devices