3833915

Information

• Patent Grant
• 3833915

• References
• Source

• Patent Number

  3,833,915

• Date Filed

  Not available

• Date Issued

  Tuesday, September 3, 1974
  50 years ago

• CPC

  • G03B9/62 - by varying interval of time between end of opening movement and beginning of closing movement
  • G03B9/16 - Two separate members moving in the same direction
  • G03B9/40 - Double plate
  • G03B9/58 - Means for varying duration of "open" period of shutter

• US Classifications

  • 396 - Photography