2146887

Information

• Patent Grant
• 2146887

• References
• Source

• Patent Number

  2,146,887

• Date Filed

  Not available

• Date Issued

  Tuesday, February 14, 1939
  85 years ago

• CPC

  • F24H1/48 - Water heaters for central heating incorporating heaters for domestic water

• US Classifications

  • 237 - Heating systems
  • 122 - Liquid heaters and vaporizers
  • 236 - Automatic temperature and humidity regulation