3616688

Information

• Patent Grant
• 3616688

• References
• Source

• Patent Number

  3,616,688

• Date Filed

  Not available

• Date Issued

  Tuesday, November 2, 1971
  53 years ago

• CPC

  • E21B47/06 - Measuring temperature or pressure
  • G01N9/26 - by measuring pressure differences
  • G01N2009/263 - using vertically-movable pressure transducer

• US Classifications

  • 073 - Measuring and testing