3891921

Information

• Patent Grant
• 3891921

• References
• Source

• Patent Number

  3,891,921

• Date Filed

  Not available

• Date Issued

  Tuesday, June 24, 1975
  49 years ago

• CPC

  • G01R1/14 - Braking arrangements Damping arrangements
  • G01R5/10 - String galvanometers
  • G01R13/38 - using the steady or oscillatory displacement of a light beam by an electromechanical measuring system

• US Classifications

  • 324 - Electricity: measuring and testing