3558174

Information

• Patent Grant
• 3558174

• References
• Source

• Patent Number

  3,558,174

• Date Filed

  Not available

• Date Issued

  Tuesday, January 26, 1971
  54 years ago

• CPC

  • E21B47/024 - of devices in the borehole
  • E21B31/14 - with means deflecting the direction of the tool

• US Classifications

  • 294 - Handling: hand and hoist-line implements
  • 033 - Geometrical instruments
  • 073 - Measuring and testing