1989144

Information

• Patent Grant
• 1989144

• References
• Source

• Patent Number

  1,989,144

• Date Filed

  Not available

• Date Issued

  Tuesday, January 29, 1935
  90 years ago

• CPC

  • F25D17/045 - Air flow control arrangements
  • Y10S62/11 - Hydrator receptacles

• US Classifications

  • 062 - Refrigeration