3823411

Information

• Patent Grant
• 3823411

• References
• Source

• Patent Number

  3,823,411

• Date Filed

  Not available

• Date Issued

  Tuesday, July 9, 1974
  50 years ago

• CPC

  • G03B19/12 - Reflex cameras with single objective and a movable reflector or a partly-transmitting mirror
  • G03B7/16 - in accordance with both the intensity of the flash source and the distance of the flash source from the object
  • G03B15/0452 - Electrical ignition means connected to the shutter
  • G03B17/12 - with means for supporting objectives, supplementary lenses, filters, masks, or turrets
  • G03B17/42 - Interlocking between shutter operation and advance of film or change of plate or cut-film

• US Classifications

  • 396 - Photography