1964003

Information

• Patent Grant
• 1964003

• References
• Source

• Patent Number

  1,964,003

• Date Filed

  Not available

• Date Issued

  Tuesday, June 26, 1934
  90 years ago

• CPC

  • B66F3/42 - with self-contained pumps
  • E21D15/586 - the props being pre-loaded
  • E21D15/587 - by means of power accumulators to be pre-charged by rock pressure

• US Classifications

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