1820504

Information

• Patent Grant
• 1820504

• References
• Source

• Patent Number

  1,820,504

• Date Filed

  Not available

• Date Issued

  Tuesday, August 25, 1931
  93 years ago

• CPC

  • E05B13/101 - for disconnecting the handle
  • Y10S292/27 - Disconnectable handle
  • Y10S292/53 - Mounting and attachment
  • Y10T70/5827 - Axially movable clutch
  • Y10T292/59 - Rollback and spindle connection
  • Y10T292/873 - Swinging
  • Y10T292/96 - Latch-spindle catches

• US Classifications

  • 070 - Locks
  • 292 - Closure fasteners