3553956

Information

• Patent Grant
• 3553956

• References
• Source

• Patent Number

  3,553,956

• Date Filed

  Not available

• Date Issued

  Tuesday, January 12, 1971
  54 years ago

• CPC

  • G04C3/061 - the balance controlling contacts and mechanically driving the gear-train
  • G04B17/325 - for fastening the hairspring in a fixed position
  • G04C3/06 - using electro-magnetic coupling between electric power source and balance

• US Classifications

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