3425273

Information

• Patent Grant
• 3425273

• References
• Source

• Patent Number

  3,425,273

• Date Filed

  Not available

• Date Issued

  Tuesday, February 4, 1969
  55 years ago

• CPC

  • E21B49/087 - Well testing
  • E21B34/085 - with time-delay systems

• US Classifications

  • 073 - Measuring and testing
  • 166 - Wells