2214538

Information

• Patent Grant
• 2214538

• References
• Source

• Patent Number

  2,214,538

• Date Filed

  Not available

• Date Issued

  Tuesday, September 10, 1940
  84 years ago

• CPC

  • G01C19/36 - with north-seeking action by magnetic means
  • Y10T74/1211 - and resetting means

• US Classifications

  • 074 - Machine element or mechanism
  • 033 - Geometrical instruments