447990

Information

• Patent Grant
• 447990

• References
• Source

• Patent Number

  447,990

• Date Filed

  Not available

• Date Issued

  Tuesday, March 10, 1891
  133 years ago

• CPC

  • F28F9/0212 - the partitions being separate elements attached to header boxes
  • Y10S165/507 - Straight side-by-side conduits joined for flow of one fluid

• US Classifications

  • 165 - Heat exchange