2215581

Information

• Patent Grant
• 2215581

• References
• Source

• Patent Number

  2,215,581

• Date Filed

  Not available

• Date Issued

  Tuesday, September 24, 1940
  84 years ago

• CPC

  • F27B9/021 - having two or more parallel tracks
  • F27B9/082 - Muffle furnaces

• US Classifications

  • 432 - Heating