1881610

Information

• Patent Grant
• 1881610

• References
• Source

• Patent Number

  1,881,610

• Date Filed

  Not available

• Date Issued

  Tuesday, October 11, 1932
  92 years ago

• CPC

  • F28F1/424 - Means comprising outside portions integral with inside portions
  • F28F1/42 - the means being both outside and inside the tubular element
  • F28F1/422 - with outside means integral with the tubular element and inside means integral with the tubular element

• US Classifications

  • 165 - Heat exchange
  • 138 - Pipes and tubular conduits