3875676

Information

• Patent Grant
• 3875676

• References
• Source

• Patent Number

  3,875,676

• Date Filed

  Not available

• Date Issued

  Tuesday, April 8, 1975
  49 years ago

• CPC

  • G01C17/20 - Observing the compass card or needle

• US Classifications

  • 033 - Geometrical instruments