2145257

Information

• Patent Grant
• 2145257

• References
• Source

• Patent Number

  2,145,257

• Date Filed

  Not available

• Date Issued

  Tuesday, January 31, 1939
  85 years ago

• CPC

  • F27B9/084 - the muffle being fixed and in a single piece
  • C21D9/0043 - Muffle furnaces; Retort furnaces

• US Classifications

  • 432 - Heating