3690241

Information

• Patent Grant
• 3690241

• References
• Source

• Patent Number

  3,690,241

• Date Filed

  Not available

• Date Issued

  Tuesday, September 12, 1972
  52 years ago

• CPC

  • G03B19/12 - Reflex cameras with single objective and a movable reflector or a partly-transmitting mirror
  • G03B7/09977 - with a movable light-measuring element

• US Classifications

  • 396 - Photography