3466923

Information

• Patent Grant
• 3466923

• References
• Source

• Patent Number

  3,466,923

• Date Filed

  Not available

• Date Issued

  Tuesday, September 16, 1969
  55 years ago

• CPC

  • G01C17/38 - Testing, calibrating, or compensating of compasses
  • G01C19/36 - with north-seeking action by magnetic means

• US Classifications

  • 073 - Measuring and testing
  • 033 - Geometrical instruments