3440534

Information

• Patent Grant
• 3440534

• References
• Source

• Patent Number

  3,440,534

• Date Filed

  Not available

• Date Issued

  Tuesday, April 22, 1969
  56 years ago

• CPC

  • G01P3/14 - by exciting one or more mechanical resonance systems
  • G01H3/08 - Analysing frequencies present in complex vibrations
  • G01R23/02 - Arrangements for measuring frequency

• US Classifications

  • 324 - Electricity: measuring and testing
  • 084 - Music