1890135

Information

• Patent Grant
• 1890135

• References
• Source

• Patent Number

  1,890,135

• Date Filed

  Not available

• Date Issued

  Tuesday, December 6, 1932
  92 years ago

• CPC

  • E21B1/04 - Devices for reversing the movement of the rod or cable at the surface
  • Y10T74/18182 - Pump jack type
  • Y10T74/18928 - Straight line motions

• US Classifications

  • 074 - Machine element or mechanism
  • 384 - Bearings