3257923

Information

• Patent Grant
• 3257923

• References
• Source

• Patent Number

  3,257,923

• Date Filed

  Not available

• Date Issued

  Tuesday, June 28, 1966
  59 years ago

• CPC

  • G03B9/12 - Two relatively-adjustable aperture-defining members moving as a unit

• US Classifications

  • 396 - Photography