3682068

Information

• Patent Grant
• 3682068

• References
• Source

• Patent Number

  3,682,068

• Date Filed

  Not available

• Date Issued

  Tuesday, August 8, 1972
  52 years ago

• CPC

  • G03B17/04 - collapsible, foldable, or extensible
  • G03B11/046 - for viewfinders or eyepieces

• US Classifications

  • 396 - Photography