3838599

Information

• Patent Grant
• 3838599

• References
• Source

• Patent Number

  3,838,599

• Date Filed

  Not available

• Date Issued

  Tuesday, October 1, 1974
  50 years ago

• CPC

  • E21B10/46 - characterised by wear resisting parts
  • G01F1/375 - with mechanical or fluidic indication

• US Classifications

  • 073 - Measuring and testing