1377522

Information

• Patent Grant
• 1377522

• References
• Source

• Patent Number

  1,377,522

• Date Filed

  Not available

• Date Issued

  Tuesday, May 10, 1921
  103 years ago

• CPC

  • F27B9/12 - with special arrangements for preheating or cooling the charge
  • F27B2009/126 - involving the circulation of cooling gases
  • F27D2009/0078 - in indirect contact with the charge

• US Classifications

  • 432 - Heating