1912358

Information

• Patent Grant
• 1912358

• References
• Source

• Patent Number

  1,912,358

• Date Filed

  Not available

• Date Issued

  Tuesday, June 6, 1933
  91 years ago

• CPC

  • G01C15/14 - Artificial horizons

• US Classifications

  • 356 - Optics: measuring and testing
  • 033 - Geometrical instruments