1931247

Information

• Patent Grant
• 1931247

• References
• Source

• Patent Number

  1,931,247

• Date Filed

  Not available

• Date Issued

  Tuesday, October 17, 1933
  92 years ago

• CPC

  • F28F13/08 - by varying the cross-section of the flow channels
  • F28D1/0535 - the conduits having a non-circular cross-section
  • Y10S165/341 - Parallel heating or cooling tubes or tubular sections

• US Classifications

  • 165 - Heat exchange
  • 126 - Stoves and furnaces