3628781

Information

• Patent Grant
• 3628781

• References
• Source

• Patent Number

  3,628,781

• Date Filed

  Not available

• Date Issued

  Tuesday, December 21, 1971
  53 years ago

• CPC

  • G01J1/36 - using electric radiation detectors
  • G04C3/102 - of the mechanical oscillator or of the coil
  • G10G7/02 - Tuning forks or like devices

• US Classifications

  • 267 - Spring devices
  • 359 - Optical: systems and elements
  • 968 - Horology
  • 984 - Musical instruments