2489430

Information

• Patent Grant
• 2489430

• References
• Source

• Patent Number

  2,489,430

• Date Filed

  Not available

• Date Issued

  Tuesday, November 29, 1949
  75 years ago

• CPC

  • G01C19/40 - for control by signals from a master compass

• US Classifications

  • 116 - Signals and indicators
  • 033 - Geometrical instruments