2665626

Information

• Patent Grant
• 2665626

• References
• Source

• Patent Number

  2,665,626

• Date Filed

  Not available

• Date Issued

  Tuesday, January 12, 1954
  70 years ago

• CPC

  • E04D13/0325 - provided with ventilating means
  • E04D13/0358 - the parts moving, in their own plane

• US Classifications

  • 454 - Ventilation