3875405

Information

• Patent Grant
• 3875405

• References
• Source

• Patent Number

  3,875,405

• Date Filed

  Not available

• Date Issued

  Tuesday, April 1, 1975
  49 years ago

• CPC

  • G01C21/08 - involving use of the magnetic field of the earth
  • G01C21/20 - Instruments for performing navigational calculations
  • G06G7/70 - for vehicles

• US Classifications

  • 250 - Radiant energy
  • 701 - Data processing: vehicles, navigation, and relative location