2131553

Information

• Patent Grant
• 2131553

• References
• Source

• Patent Number

  2,131,553

• Date Filed

  Not available

• Date Issued

  Tuesday, September 27, 1938
  86 years ago

• CPC

  • F16L23/0283 - the collar being integral with the pipe
  • F23J13/04 - Joints Connections
  • F23J2213/203 - between stack/duct and combustion apparatus

• US Classifications

  • 285 - Pipe joints or couplings
  • 126 - Stoves and furnaces