1808169

Information

• Patent Grant
• 1808169

• References
• Source

• Patent Number

  1,808,169

• Date Filed

  Not available

• Date Issued

  Tuesday, June 2, 1931
  93 years ago

• CPC

  • F22D1/04 - the tubes having plain outer surfaces
  • Y10S165/431 - Manifolds connected in series

• US Classifications

  • 165 - Heat exchange