2762278

Information

• Patent Grant
• 2762278

• References
• Source

• Patent Number

  2,762,278

• Date Filed

  Not available

• Date Issued

  Tuesday, September 11, 1956
  68 years ago

• CPC

  • G01J1/22 - using a variable element in the light-path

• US Classifications

  • 396 - Photography
  • 356 - Optics: measuring and testing
  • 362 - Illumination