3321669

Information

• Patent Grant
• 3321669

• References
• Source

• Patent Number

  3,321,669

• Date Filed

  Not available

• Date Issued

  Tuesday, May 23, 1967
  57 years ago

• CPC

  • H02H5/086 - of cooling or lubricating fluids
  • F25B31/002 - lubrication
  • F25B49/02 - for compression type machines, plant or systems
  • H01C7/022 - mainly consisting of non-metallic substances

• US Classifications

  • 361 - Electricity: electrical systems and devices
  • 062 - Refrigeration
  • 318 - Electricity: motive power systems