2390902

Information

• Patent Grant
• 2390902

• References
• Source

• Patent Number

  2,390,902

• Date Filed

  Not available

• Date Issued

  Tuesday, December 11, 1945
  79 years ago

• CPC

  • F23N3/02 - Regulating draught by direct pressure operation of single valves or dampers

• US Classifications

  • 236 - Automatic temperature and humidity regulation
  • 431 - Combustion