1939159

Information

• Patent Grant
• 1939159

• References
• Source

• Patent Number

  1,939,159

• Date Filed

  Not available

• Date Issued

  Tuesday, December 12, 1933
  91 years ago

• CPC

  • E06B3/4423 - disappearing in a wall pocket; Pockets therefor
  • E06B3/44 - Vertically-sliding wings
  • E06B7/02 - for providing ventilation
  • E06B7/28 - Other arrangements on doors or windows
  • E06B7/32 - Serving doors Passing-through doors; Pet-doors

• US Classifications

  • 049 - Movable or removable closures