1619621

Information

• Patent Grant
• 1619621

• References
• Source

• Patent Number

  1,619,621

• Date Filed

  Not available

• Date Issued

  Tuesday, March 1, 1927
  98 years ago

• CPC

  • B60K11/085 - with adjustable shutters or blinds
  • F01P7/12 - by thermostatic control
  • Y10S165/098 - One shutter section having different flow area or flow direction with another shutter section

• US Classifications

  • 165 - Heat exchange
  • 049 - Movable or removable closures
  • 123 - Internal-combustion engines
  • 236 - Automatic temperature and humidity regulation