3822944

Information

• Patent Grant
• 3822944

• References
• Source

• Patent Number

  3,822,944

• Date Filed

  Not available

• Date Issued

  Tuesday, July 9, 1974
  50 years ago

• CPC

  • G01C9/28 - Mountings
  • G01B11/272 - using photoelectric detection means
  • G01M11/062 - using an indicator mounted on the head-light

• US Classifications

  • 356 - Optics: measuring and testing
  • 033 - Geometrical instruments