3813886

Information

• Patent Grant
• 3813886

• References
• Source

• Patent Number

  3,813,886

• Date Filed

  Not available

• Date Issued

  Tuesday, June 4, 1974
  50 years ago

• CPC

  • E21D23/082 - acting solely on the elements of the supports

• US Classifications

  • 405 - Hydraulic and earth engineering
  • 248 - Supports