3881310

Information

• Patent Grant
• 3881310

• References
• Source

• Patent Number

  3,881,310

• Date Filed

  Not available

• Date Issued

  Tuesday, May 6, 1975
  49 years ago

• CPC

  • G04C3/14 - incorporating a stepping motor
  • G04C11/02 - by radio
  • G04R40/02 - by phase locking

• US Classifications

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