2459830

Information

• Patent Grant
• 2459830

• References
• Source

• Patent Number

  2,459,830

• Date Filed

  Not available

• Date Issued

  Tuesday, January 25, 1949
  75 years ago

• CPC

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

• US Classifications

  • 318 - Electricity: motive power systems
  • 033 - Geometrical instruments
  • 324 - Electricity: measuring and testing
  • 340 - Communications: electrical