3169218

Information

• Patent Grant
• 3169218

• References
• Source

• Patent Number

  3,169,218

• Date Filed

  Not available

• Date Issued

  Tuesday, February 9, 1965
  60 years ago

• CPC

  • G04C15/00 - Clocks driven by synchronous motors
  • G04C3/00 - Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
  • G04C10/02 - the power supply being a radioactive or photovoltaic source
  • G04C11/02 - by radio
  • G04G19/00 - Electric power supply circuits specially adapted for use in electronic time-pieces
  • G04R40/02 - by phase locking

• US Classifications

  • 318 - Electricity: motive power systems
  • 368 - Horology: time measuring systems or devices
  • 968 - Horology