1747826

Information

• Patent Grant
• 1747826

• References
• Source

• Patent Number

  1,747,826

• Date Filed

  Not available

• Date Issued

  Tuesday, February 18, 1930
  95 years ago

• CPC

  • F24J2/266 - the conduits being spirally coiled
  • Y02E10/44 - Heat exchange systems

• US Classifications

  • 126 - Stoves and furnaces