2454959

Information

• Patent Grant
• 2454959

• References
• Source

• Patent Number

  2,454,959

• Date Filed

  Not available

• Date Issued

  Tuesday, November 30, 1948
  76 years ago

• CPC

  • G01P3/40 - using stroboscopic means
  • D06H3/02 - visually
  • H02P5/52 - additionally providing control of relative angular displacement

• US Classifications

  • 356 - Optics: measuring and testing
  • 318 - Electricity: motive power systems
  • 359 - Optical: systems and elements