2587481

Information

• Patent Grant
• 2587481

• References
• Source

• Patent Number

  2,587,481

• Date Filed

  Not available

• Date Issued

  Tuesday, February 26, 1952
  73 years ago

• CPC

  • G01C17/32 - Electron compasses

• US Classifications

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