1671347

Information

• Patent Grant
• 1671347

• References
• Source

• Patent Number

  1,671,347

• Date Filed

  Not available

• Date Issued

  Tuesday, May 29, 1928
  96 years ago

• CPC

  • F28F9/264 - by sleeves, nipples
  • F28D1/047 - the conduits being bent

• US Classifications

  • 165 - Heat exchange