3665702

Information

• Patent Grant
• 3665702

• References
• Source

• Patent Number

  3,665,702

• Date Filed

  Not available

• Date Issued

  Tuesday, May 30, 1972
  52 years ago

• CPC

  • G04B45/04 - Time pieces with invisible drive
  • G04B19/18 - Graduations on the crystal or glass, on the bezel, or on the rim

• US Classifications

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