1720323

Information

• Patent Grant
• 1720323

• References
• Source

• Patent Number

  1,720,323

• Date Filed

  Not available

• Date Issued

  Tuesday, July 9, 1929
  95 years ago

• CPC

  • F16L51/023 - consisting of flexible rings

• US Classifications

  • 285 - Pipe joints or couplings