1884408

Information

• Patent Grant
• 1884408

• References
• Source

• Patent Number

  1,884,408

• Date Filed

  Not available

• Date Issued

  Tuesday, October 25, 1932
  92 years ago

• CPC

  • B61D27/0018 - Air-conditioning means
  • Y10S454/904 - Magnetic means to hold a damper closed

• US Classifications

  • 165 - Heat exchange
  • 219 - Electric heating
  • 392 - Electric resistance heating devices
  • 454 - Ventilation