3878374

Information

• Patent Grant
• 3878374

• References
• Source

• Patent Number

  3,878,374

• Date Filed

  Not available

• Date Issued

  Tuesday, April 15, 1975
  49 years ago

• CPC

  • H03L7/06 - using a reference signal applied to a frequency- or phase-locked loop
  • G01N9/002 - using variation of the resonant frequency of an element vibrating in contact with the material submitted to analysis
  • G01N2009/008 - Schlatter vibrating vane type

• US Classifications

  • 702 - Data processing: measuring, calibrating, or testing
  • 073 - Measuring and testing
  • 708 - Electrical computers: arithmetic processing and calculating