3823566

Information

• Patent Grant
• 3823566

• References
• Source

• Patent Number

  3,823,566

• Date Filed

  Not available

• Date Issued

  Tuesday, July 16, 1974
  50 years ago

• CPC

  • E21D23/0095 - Temporary supports at the driving front

• US Classifications

  • 405 - Hydraulic and earth engineering