1392522

Information

• Patent Grant
• 1392522

• References
• Source

• Patent Number

  1,392,522

• Date Filed

  Not available

• Date Issued

  Tuesday, October 4, 1921
  103 years ago

• CPC

  • F01P7/10 - by throttling amount of air flowing through liquid-to-air heat exchangers
  • Y10S165/097 - Plural parallel pivotable shutters

• US Classifications

  • 165 - Heat exchange
  • 049 - Movable or removable closures
  • 123 - Internal-combustion engines