1957544

Information

• Patent Grant
• 1957544

• References
• Source

• Patent Number

  1,957,544

• Date Filed

  Not available

• Date Issued

  Tuesday, May 8, 1934
  90 years ago

• CPC

  • F24B5/025 - Supply of secondary air for completing combustion of fuel

• US Classifications

  • 126 - Stoves and furnaces