2723593

Information

• Patent Grant
• 2723593

• References
• Source

• Patent Number

  2,723,593

• Date Filed

  Not available

• Date Issued

  Tuesday, November 15, 1955
  69 years ago

• CPC

  • G01C11/14 - with optical projection

• US Classifications

  • 353 - Optics: image projectors
  • 359 - Optical: systems and elements
  • 362 - Illumination