2891377

Information

• Patent Grant
• 2891377

• References
• Source

• Patent Number

  2,891,377

• Date Filed

  Not available

• Date Issued

  Tuesday, June 23, 1959
  66 years ago

• CPC

  • G04C3/063 - the balance controlling contacts, the balance driving electro-magnet simultaneously driving the gear-train
  • G04B17/04 - Oscillators acting by spring tension

• US Classifications

  • 368 - Horology: time measuring systems or devices
  • 267 - Spring devices
  • 310 - Electrical generator or motor structure
  • 968 - Horology