1487331

Information

• Patent Grant
• 1487331

• References
• Source

• Patent Number

  1,487,331

• Date Filed

  Not available

• Date Issued

  Tuesday, March 18, 1924
  101 years ago

• CPC

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

• US Classifications

  • 049 - Movable or removable closures