2216986

Information

• Patent Grant
• 2216986

• References
• Source

• Patent Number

  2,216,986

• Date Filed

  Not available

• Date Issued

  Tuesday, October 8, 1940
  84 years ago

• CPC

  • F23J15/025 - using filters
  • F23J2217/30 - by screens

• US Classifications

  • 110 - Furnaces
  • 055 - Gas separation