2437506

Information

• Patent Grant
• 2437506

• References
• Source

• Patent Number

  2,437,506

• Date Filed

  Not available

• Date Issued

  Tuesday, March 9, 1948
  76 years ago

• CPC

  • G01C19/40 - for control by signals from a master compass
  • G01C17/00 - Compasses Devices for ascertaining true or magnetic north for navigation or surveying purposes

• US Classifications

  • 033 - Geometrical instruments
  • 250 - Radiant energy
  • 318 - Electricity: motive power systems
  • 346 - Recorders