3644807

Information

• Patent Grant
• 3644807

• References
• Source

• Patent Number

  3,644,807

• Date Filed

  Not available

• Date Issued

  Tuesday, February 22, 1972
  53 years ago

• CPC

  • H02P6/14 - Electronic commutators
  • G04C15/0081 - Automatic stabilisation of net frequency with regard to time
  • G04F5/06 - using piezoelectric resonators

• US Classifications

  • 318 - Electricity: motive power systems
  • 310 - Electrical generator or motor structure
  • 331 - Oscillators
  • 968 - Horology