851985

Information

• Patent Grant
• 851985

• References
• Source

• Patent Number

  851,985

• Date Filed

  Not available

• Date Issued

  Tuesday, April 30, 1907
  117 years ago

• CPC

  • F22B21/005 - involving a central vertical drum, header or downcomer

• US Classifications

  • 122 - Liquid heaters and vaporizers
  • 126 - Stoves and furnaces
  • 165 - Heat exchange