3752591

Information

• Patent Grant
• 3752591

• References
• Source

• Patent Number

  3,752,591

• Date Filed

  Not available

• Date Issued

  Tuesday, August 14, 1973
  51 years ago

• CPC

  • G01C1/08 - Sextants
  • G01C21/02 - by astronomical means

• US Classifications

  • 356 - Optics: measuring and testing