2714330

Information

• Patent Grant
• 2714330

• References
• Source

• Patent Number

  2,714,330

• Date Filed

  Not available

• Date Issued

  Tuesday, August 2, 1955
  69 years ago

• CPC

  • G01C21/22 - Plotting boards
  • G01S1/02 - using radio waves
  • Y10S116/15 - Projection

• US Classifications

  • 353 - Optics: image projectors
  • 033 - Geometrical instruments
  • 116 - Signals and indicators
  • 434 - Education and demonstration