3781698

Information

• Patent Grant
• 3781698

• References
• Source

• Patent Number

  3,781,698

• Date Filed

  Not available

• Date Issued

  Tuesday, December 25, 1973
  51 years ago

• CPC

  • G01M1/22 - and converting vibrations due to unbalance into electric variables
  • G01M13/045 - by acoustic or vibration analysis
  • G01R27/12 - using hand generators

• US Classifications

  • 073 - Measuring and testing
  • 324 - Electricity: measuring and testing
  • 330 - Amplifiers