1666799

Information

• Patent Grant
• 1666799

• References
• Source

• Patent Number

  1,666,799

• Date Filed

  Not available

• Date Issued

  Tuesday, April 17, 1928
  97 years ago

• CPC

  • F16L13/124 - for concrete pipes

• US Classifications

  • 285 - Pipe joints or couplings
  • 138 - Pipes and tubular conduits