2069269

Information

• Patent Grant
• 2069269

• References
• Source

• Patent Number

  2,069,269

• Date Filed

  Not available

• Date Issued

  Tuesday, February 2, 1937
  87 years ago

• CPC

  • E21F3/00 - Cooling or drying of air

• US Classifications

  • 062 - Refrigeration
  • 261 - Gas and liquid contact apparatus
  • 454 - Ventilation