219910

Information

• Patent Grant
• 219910

• References
• Source

• Patent Number

  219,910

• Date Filed

  Not available

• Date Issued

  Tuesday, September 23, 1879
  146 years ago

• CPC

  • F24F11/0012 - Air temperature
  • F28F27/00 - Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
  • Y10S165/004 - Sight glass

• US Classifications

  • 165 - Heat exchange