454897

Information

• Patent Grant
• 454897

• References
• Source

• Patent Number

  454,897

• Date Filed

  Not available

• Date Issued

  Tuesday, June 30, 1891
  133 years ago

• CPC

  • E05B43/00 - Time locks
  • Y10S70/45 - Time lock and auxiliary lock operable on failure of time lock
  • Y10T16/287 - Spring and flexible link
  • Y10T70/325 - Keeper-carried
  • Y10T70/7028 - Electric
  • Y10T70/7045 - Emergency release

• US Classifications

  • 070 - Locks
  • 016 - Miscellaneous hardware