3916774

Information

• Patent Grant
• 3916774

• References
• Source

• Patent Number

  3,916,774

• Date Filed

  Not available

• Date Issued

  Tuesday, November 4, 1975
  49 years ago

• CPC

  • E04H17/14 - Fences constructed of rigid elements
  • E06B7/084 - with rotatable lamellae
  • E06B9/367 - Lamellae suspensions ; Bottom weights; Bottom guides
  • F24F13/15 - with parallel simultaneously tiltable lamellae
  • E04H2017/1495 - Fences with pivotable slats for reduced wind resistance or for adjusting visibility

• US Classifications

  • 454 - Ventilation
  • 049 - Movable or removable closures