2784557

Information

• Patent Grant
• 2784557

• References
• Source

• Patent Number

  2,784,557

• Date Filed

  Not available

• Date Issued

  Tuesday, March 12, 1957
  67 years ago

• CPC

  • E21B3/06 - Adaptation of rotary draw works to drive rotary tables
  • Y10T74/19014 - Plural prime movers selectively coupled to common output

• US Classifications

  • 060 - Power plants
  • 074 - Machine element or mechanism
  • 254 - Implements or apparatus for applying pushing or pulling force