1394421

Information

• Patent Grant
• 1394421

• References
• Source

• Patent Number

  1,394,421

• Date Filed

  Not available

• Date Issued

  Tuesday, October 18, 1921
  103 years ago

• CPC

  • F23K3/08 - for furnaces having movable grate bars

• US Classifications

  • 110 - Furnaces
  • 414 - Material or article handling