2650292

Information

• Patent Grant
• 2650292

• References
• Source

• Patent Number

  2,650,292

• Date Filed

  Not available

• Date Issued

  Tuesday, August 25, 1953
  71 years ago

• CPC

  • F21V14/06 - by movement of refractors
  • H05B31/0036 - for projection, copying or stage lighting
  • F21W2131/406 - for theatres, stages or film studios

• US Classifications

  • 362 - Illumination
  • 353 - Optics: image projectors