3136534

Information

• Patent Grant
• 3136534

• References
• Source

• Patent Number

  3,136,534

• Date Filed

  Not available

• Date Issued

  Tuesday, June 9, 1964
  61 years ago

• CPC

  • E21D11/40 - Devices or apparatus specially adapted for handling or placing units of linings or supporting units for tunnels or galleries
  • E21D15/60 - Devices for withdrawing props or chocks

• US Classifications

  • 254 - Implements or apparatus for applying pushing or pulling force
  • 299 - Mining or in situ disintegration of hard material
  • 405 - Hydraulic and earth engineering
  • 414 - Material or article handling