2234840

Information

• Patent Grant
• 2234840

• References
• Source

• Patent Number

  2,234,840

• Date Filed

  Not available

• Date Issued

  Tuesday, March 11, 1941
  84 years ago

• CPC

  • F23N3/06 - by conjoint operation of two or more valves or dampers

• US Classifications

  • 236 - Automatic temperature and humidity regulation