3877717

Information

• Patent Grant
• 3877717

• References
• Source

• Patent Number

  3,877,717

• Date Filed

  Not available

• Date Issued

  Tuesday, April 15, 1975
  49 years ago

• CPC

  • E21D23/0095 - Temporary supports at the driving front
  • E21D20/003 - Machines for drilling anchor holes and setting anchor bolts
  • E21F13/025 - Shuttle cars

• US Classifications

  • 280 - Land vehicles
  • 180 - Motor vehicles