2888231

Information

• Patent Grant
• 2888231

• References
• Source

• Patent Number

  2,888,231

• Date Filed

  Not available

• Date Issued

  Tuesday, May 26, 1959
  65 years ago

• CPC

  • E21D15/587 - by means of power accumulators to be pre-charged by rock pressure

• US Classifications

  • 248 - Supports
  • 060 - Power plants
  • 254 - Implements or apparatus for applying pushing or pulling force