3383875

Information

• Patent Grant
• 3383875

• References
• Source

• Patent Number

  3,383,875

• Date Filed

  Not available

• Date Issued

  Tuesday, May 21, 1968
  56 years ago

• CPC

  • F16L59/153 - for flexible pipes
  • F16L59/125 - Helical spacers
  • F16L59/141 - in which the temperature of the medium is below that of the ambient temperature
  • H01B12/14 - characterised by the disposition of thermal insulation
  • Y02E40/645 - characterised by the disposition of thermal insulation

• US Classifications

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