3709129

Information

• Patent Grant
• 3709129

• References
• Source

• Patent Number

  3,709,129

• Date Filed

  Not available

• Date Issued

  Tuesday, January 9, 1973
  52 years ago

• CPC

  • G03B17/04 - collapsible, foldable, or extensible
  • G03B7/006 - setting of both diaphragm and distance
  • G03B17/14 - interchangeably

• US Classifications

  • 396 - Photography
  • 359 - Optical: systems and elements