3759280

Information

• Patent Grant
• 3759280

• References
• Source

• Patent Number

  3,759,280

• Date Filed

  Not available

• Date Issued

  Tuesday, September 18, 1973
  51 years ago

• CPC

  • F16L41/002 - of concrete, cement or asbestos-cement
  • E02D29/12 - Manhole shafts Other inspection or access chambers Accessories therefor
  • F16L5/02 - Sealing
  • Y10T137/6991 - Ground supporting enclosure

• US Classifications

  • 137 - Fluid handling
  • 052 - Static structures
  • 285 - Pipe joints or couplings