1645673

Information

• Patent Grant
• 1645673

• References
• Source

• Patent Number

  1,645,673

• Date Filed

  Not available

• Date Issued

  Tuesday, October 18, 1927
  97 years ago

• CPC

  • E05F11/36 - specially designed for passing through a wall
  • E05Y2900/146 - Shutters

• US Classifications

  • 049 - Movable or removable closures