231223

Information

• Patent Grant
• 231223

• References
• Source

• Patent Number

  231,223

• Date Filed

  Not available

• Date Issued

  Tuesday, August 17, 1880
  144 years ago

• CPC

  • E05B3/10 - by a bipartite or cleft spindle in the follower or in the handle shank
  • Y10S411/954 - Wedged slotted bolt
  • Y10T70/8568 - Escutcheons
  • Y10T292/876 - Wedge
  • Y10T292/91 - Knob rose plates

• US Classifications

  • 292 - Closure fasteners
  • 070 - Locks
  • 411 - Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener