2073811

Information

• Patent Grant
• 2073811

• References
• Source

• Patent Number

  2,073,811

• Date Filed

  Not available

• Date Issued

  Tuesday, March 16, 1937
  88 years ago

• CPC

  • F23J3/02 - Cleaning furnace tubes Cleaning flues or chimneys
  • Y10T29/4511 - Interior surface

• US Classifications

  • 015 - Brushing, scrubbing, and general cleaning
  • 029 - Metal working