1639941

Information

• Patent Grant
• 1639941

• References
• Source

• Patent Number

  1,639,941

• Date Filed

  Not available

• Date Issued

  Tuesday, August 23, 1927
  98 years ago

• CPC

  • F28D1/03 - with plate-like or laminated conduits
  • F28D1/035 - with U-flow or serpentine-flow inside the conduits
  • Y10S165/338 - Nested or concentric members define annular air draft passage and heating or cooling conduit

• US Classifications

  • 165 - Heat exchange