3685419

Information

• Patent Grant
• 3685419

• References
• Source

• Patent Number

  3,685,419

• Date Filed

  Not available

• Date Issued

  Tuesday, August 22, 1972
  52 years ago

• CPC

  • G03B7/20 - in accordance with change of lens
  • G03B7/006 - setting of both diaphragm and distance
  • G03B7/12 - a hand-actuated member moved from one position to another providing the energy to move the setting member
  • G03B17/14 - interchangeably

• US Classifications

  • 396 - Photography