1969439

Information

• Patent Grant
• 1969439

• References
• Source

• Patent Number

  1,969,439

• Date Filed

  Not available

• Date Issued

  Tuesday, August 7, 1934
  90 years ago

• CPC

  • F28D1/0358 - the conduits being formed by bent plates
  • Y10S165/381 - including air fin apertures

• US Classifications

  • 165 - Heat exchange