3662666

Information

• Patent Grant
• 3662666

• References
• Source

• Patent Number

  3,662,666

• Date Filed

  Not available

• Date Issued

  Tuesday, May 16, 1972
  52 years ago

• CPC

  • G03B33/16 - using colour-pattern screens
  • G03B17/12 - with means for supporting objectives, supplementary lenses, filters, masks, or turrets

• US Classifications

  • 396 - Photography