3564838

Information

• Patent Grant
• 3564838

• References
• Source

• Patent Number

  3,564,838

• Date Filed

  Not available

• Date Issued

  Tuesday, February 23, 1971
  53 years ago

• CPC

  • G04C13/105 - setting the time-indicating means
  • G04C13/026 - by radio
  • G04R40/04 - by detecting the radio signal frequency

• US Classifications

  • 368 - Horology: time measuring systems or devices
  • 968 - Horology