3490480

Information

• Patent Grant
• 3490480

• References
• Source

• Patent Number

  3,490,480

• Date Filed

  Not available

• Date Issued

  Tuesday, January 20, 1970
  55 years ago

• CPC

  • G05D11/136 - by sensing the viscosity
  • Y10T137/2509 - By optical or chemical property

• US Classifications

  • 137 - Fluid handling
  • 073 - Measuring and testing