3168824

Information

• Patent Grant
• 3168824

• References
• Source

• Patent Number

  3,168,824

• Date Filed

  Not available

• Date Issued

  Tuesday, February 9, 1965
  59 years ago

• CPC

  • G01M3/005 - using pigs or moles
  • G01M3/24 - using infrasonic, sonic, or ultrasonic vibrations
  • H01R31/00 - Coupling parts supported only by co-operation with counterpart
  • H02G15/28 - structurally associated with devices for indicating the presence or location of non-electric faults

• US Classifications

  • 073 - Measuring and testing
  • 340 - Communications: electrical