1399281

Information

• Patent Grant
• 1399281

• References
• Source

• Patent Number

  1,399,281

• Date Filed

  Not available

• Date Issued

  Tuesday, December 6, 1921
  103 years ago

• CPC

  • F22D5/16 - of fluids

• US Classifications

  • 122 - Liquid heaters and vaporizers
  • 236 - Automatic temperature and humidity regulation