3520618

Information

• Patent Grant
• 3520618

• References
• Source

• Patent Number

  3,520,618

• Date Filed

  Not available

• Date Issued

  Tuesday, July 14, 1970
  55 years ago

• CPC

  • G01M11/062 - using an indicator mounted on the head-light

• US Classifications

  • 356 - Optics: measuring and testing