3667506

Information

• Patent Grant
• 3667506

• References
• Source

• Patent Number

  3,667,506

• Date Filed

  Not available

• Date Issued

  Tuesday, June 6, 1972
  51 years ago

• CPC

  • F16L11/16 - wound from profiled strips or bands
  • H01B7/202 - Longitudinal lapped metal tubes
  • H01B13/2613 - by longitudinal lapping

• US Classifications

  • 138 - Pipes and tubular conduits
  • 174 - Electricity: conductors and insulators