2717778

Information

• Patent Grant
• 2717778

• References
• Source

• Patent Number

  2,717,778

• Date Filed

  Not available

• Date Issued

  Tuesday, September 13, 1955
  70 years ago

• CPC

  • E05F11/34 - with screw mechanisms
  • E05F11/36 - specially designed for passing through a wall
  • E05Y2900/516 - for trucks or trailers
  • Y10T16/53625 - Hook to hook

• US Classifications

  • 049 - Movable or removable closures
  • 016 - Miscellaneous hardware
  • 160 - Flexible or portable closure, partition, or panel