2120951

Information

• Patent Grant
• 2120951

• References
• Source

• Patent Number

  2,120,951

• Date Filed

  Not available

• Date Issued

  Tuesday, June 14, 1938
  86 years ago

• CPC

  • G01C17/00 - Compasses Devices for ascertaining true or magnetic north for navigation or surveying purposes
  • G01C17/14 - by reference marks

• US Classifications

  • 033 - Geometrical instruments