3823551

Information

• Patent Grant
• 3823551

• References
• Source

• Patent Number

  3,823,551

• Date Filed

  Not available

• Date Issued

  Tuesday, July 16, 1974
  50 years ago

• CPC

  • G04G9/10 - by controlling light sources
  • G04C3/005 - Multiple switches
  • G04C10/02 - the power supply being a radioactive or photovoltaic source
  • G04C10/04 - with means for indicating the condition of the power supply
  • G04G5/04 - by setting each of the displayed values
  • G04G9/102 - using multiplexing techniques
  • G04G9/105 - provided with date indication
  • G04G9/107 - provided with means for displaying at will a time indication or a date or a part thereof

• US Classifications

  • 368 - Horology: time measuring systems or devices
  • 327 - Miscellaneous active electrical nonlinear devices, circuits, and systems
  • 968 - Horology
  • D10 - Measuring, testing, or signalling instruments