1839322

Information

• Patent Grant
• 1839322

• References
• Source

• Patent Number

  1,839,322

• Date Filed

  Not available

• Date Issued

  Tuesday, January 5, 1932
  93 years ago

• CPC

  • F16L1/161 - the pipe being composed of sections of short length
  • E02D29/073 - Tunnels or shuttering therefor assembled from sections individually sunk onto, or laid on, the water-bed
  • F16L55/11 - Plugs

• US Classifications

  • 405 - Hydraulic and earth engineering
  • 138 - Pipes and tubular conduits