3753294

Information

• Patent Grant
• 3753294

• References
• Source

• Patent Number

  3,753,294

• Date Filed

  Not available

• Date Issued

  Tuesday, August 21, 1973
  51 years ago

• CPC

  • E21B47/04 - Measuring depth or liquid level
  • G01B7/026 - for measuring length of cable, band or the like, which has been paid out
  • G01B7/044 - using capacitive means

• US Classifications

  • 033 - Geometrical instruments