2385978

Information

• Patent Grant
• 2385978

• References
• Source

• Patent Number

  2,385,978

• Date Filed

  Not available

• Date Issued

  Tuesday, October 2, 1945
  79 years ago

• CPC

  • G01C1/10 - including an artificial horizon

• US Classifications

  • 356 - Optics: measuring and testing