1778131

Information

• Patent Grant
• 1778131

• References
• Source

• Patent Number

  1,778,131

• Date Filed

  Not available

• Date Issued

  Tuesday, October 14, 1930
  94 years ago

• CPC

  • E21B1/04 - Devices for reversing the movement of the rod or cable at the surface

• US Classifications

  • 384 - Bearings