3494136

Information

• Patent Grant
• 3494136

• References
• Source

• Patent Number

  3,494,136

• Date Filed

  Not available

• Date Issued

  Tuesday, February 10, 1970
  54 years ago

• CPC

  • E21D9/0635 - Tail sealing means
  • E21D11/10 - with concrete cast in situ Shuttering also lost shutterings

• US Classifications

  • 405 - Hydraulic and earth engineering