1771812

Information

• Patent Grant
• 1771812

• References
• Source

• Patent Number

  1,771,812

• Date Filed

  Not available

• Date Issued

  Tuesday, July 29, 1930
  94 years ago

• CPC

  • F28D21/0008 - Air heaters
  • Y10S165/341 - Parallel heating or cooling tubes or tubular sections

• US Classifications

  • 165 - Heat exchange