3789653

Information

• Patent Grant
• 3789653

• References
• Source

• Patent Number

  3,789,653

• Date Filed

  Not available

• Date Issued

  Tuesday, February 5, 1974
  51 years ago

• CPC

  • G04F13/02 - using optical means
  • G04C11/00 - Synchronisation of independently-driven clocks
  • G04D7/1207 - only for measuring

• US Classifications

  • 073 - Measuring and testing
  • 368 - Horology: time measuring systems or devices
  • 398 - Optical communications
  • 968 - Horology