3657630

Information

• Patent Grant
• 3657630

• References
• Source

• Patent Number

  3,657,630

• Date Filed

  Not available

• Date Issued

  Tuesday, April 18, 1972
  52 years ago

• CPC

  • G01R17/08 - in which a force or torque representing the measured value is balanced by a force or torque representing the reference value
  • G01L11/008 - electrostatic or electromagnetic counterbalancing forces
  • G05D3/14 - using an analogue comparing device

• US Classifications

  • 318 - Electricity: motive power systems
  • 073 - Measuring and testing