3504503

Information

• Patent Grant
• 3504503

• References
• Source

• Patent Number

  3,504,503

• Date Filed

  Not available

• Date Issued

  Tuesday, April 7, 1970
  55 years ago

• CPC

  • F16L1/11 - for the detection or protection of pipes in the ground
  • F16L9/125 - electrically conducting
  • H02G9/025 - Coverings therefor
  • Y10S116/14 - Tapes as carriers

• US Classifications

  • 405 - Hydraulic and earth engineering
  • 116 - Signals and indicators