3672388

Information

• Patent Grant
• 3672388

• References
• Source

• Patent Number

  3,672,388

• Date Filed

  Not available

• Date Issued

  Tuesday, June 27, 1972
  52 years ago

• CPC

  • F15C1/005 - for measurement techniques
  • G01N9/002 - using variation of the resonant frequency of an element vibrating in contact with the material submitted to analysis
  • G01N2009/004 - comparing frequencies of two elements
  • Y10T137/2158 - With pulsed control-input signal
  • Y10T137/2499 - Mixture condition maintaining or sensing

• US Classifications

  • 137 - Fluid handling
  • 073 - Measuring and testing
  • 128 - Surgery
  • 331 - Oscillators