3893304

Information

• Patent Grant
• 3893304

• References
• Source

• Patent Number

  3,893,304

• Date Filed

  Not available

• Date Issued

  Tuesday, July 8, 1975
  49 years ago

• CPC

  • E02D15/06 - Placing concrete under water
  • E02D29/063 - Tunnels submerged into, or built in, open water
  • F16L1/16 - on the bottom

• US Classifications

  • 405 - Hydraulic and earth engineering
  • 052 - Static structures
  • 249 - Static molds