2694336

Information

• Patent Grant
• 2694336

• References
• Source

• Patent Number

  2,694,336

• Date Filed

  Not available

• Date Issued

  Tuesday, November 16, 1954
  70 years ago

• CPC

  • G03B21/32 - Details specially adapted for motion-picture projection
  • G03B21/40 - Eliminating or reducing effect of flicker

• US Classifications

  • 352 - Optics: motion pictures
  • 396 - Photography