3088217

Information

• Patent Grant
• 3088217

• References
• Source

• Patent Number

  3,088,217

• Date Filed

  Not available

• Date Issued

  Tuesday, May 7, 1963
  61 years ago

• CPC

  • G01C17/20 - Observing the compass card or needle
  • G01C17/04 - with north-seeking magnetic elements
  • G01C17/12 - by sighting means

• US Classifications

  • 033 - Geometrical instruments
  • 324 - Electricity: measuring and testing