1655840

Information

• Patent Grant
• 1655840

• References
• Source

• Patent Number

  1,655,840

• Date Filed

  Not available

• Date Issued

  Tuesday, January 10, 1928
  97 years ago

• CPC

  • E05B37/02 - with tumbler discs or rings arranged on a single axis, each disc being adjustable independently of the others
  • Y10S292/61 - Spring devices
  • Y10T70/5159 - Emergency exit
  • Y10T70/5336 - Combination operable only
  • Y10T70/55 - Dogged bolt or connections
  • Y10T70/5531 - Combination and/or key operable
  • Y10T70/7294 - Concentric spindles
  • Y10T70/7373 - Nested
  • Y10T70/7429 - Resonance type

• US Classifications

  • 070 - Locks
  • 292 - Closure fasteners