3159089

Information

• Patent Grant
• 3159089

• References
• Source

• Patent Number

  3,159,089

• Date Filed

  Not available

• Date Issued

  Tuesday, December 1, 1964
  60 years ago

• CPC

  • B61D27/009 - Means for ventilating only
  • B61D17/12 - Roofs
  • F24F7/007 - with forced flow
  • F24F13/16 - built up of parallelly-movable plates

• US Classifications

  • 454 - Ventilation