3431677

Information

• Patent Grant
• 3431677

• References
• Source

• Patent Number

  3,431,677

• Date Filed

  Not available

• Date Issued

  Tuesday, March 11, 1969
  56 years ago

• CPC

  • B61D19/023 - Emergency exits
  • B60J9/02 - Entrance or exit closures other than windows, doors, or in roofs
  • Y10T292/283 - Chain

• US Classifications

  • 049 - Movable or removable closures
  • 292 - Closure fasteners