3603683

Information

• Patent Grant
• 3603683

• References
• Source

• Patent Number

  3,603,683

• Date Filed

  Not available

• Date Issued

  Tuesday, September 7, 1971
  53 years ago

• CPC

  • G01C5/005 - altimeters for aircraft
  • G01C3/12 - with monocular observation at a single point

• US Classifications

  • 356 - Optics: measuring and testing