3851481

Information

• Patent Grant
• 3851481

• References
• Source

• Patent Number

  3,851,481

• Date Filed

  Not available

• Date Issued

  Tuesday, December 3, 1974
  50 years ago

• CPC

  • E21F13/025 - Shuttle cars
  • E21D11/12 - Temporary supports for use during building Accessories
  • E21D20/003 - Machines for drilling anchor holes and setting anchor bolts

• US Classifications

  • 405 - Hydraulic and earth engineering
  • 198 - Conveyors: power-driven
  • 414 - Material or article handling