1891860

Information

• Patent Grant
• 1891860

• References
• Source

• Patent Number

  1,891,860

• Date Filed

  Not available

• Date Issued

  Tuesday, December 20, 1932
  92 years ago

• CPC

  • F23L17/06 - branched T-headed

• US Classifications

  • 454 - Ventilation
  • 126 - Stoves and furnaces