2277447

Information

• Patent Grant
• 2277447

• References
• Source

• Patent Number

  2,277,447

• Date Filed

  Not available

• Date Issued

  Tuesday, March 24, 1942
  82 years ago

• CPC

  • C21B7/00 - Blast furnaces
  • C21B7/08 - Top armourings

• US Classifications

  • 266 - Metallurgical apparatus