2939371

Information

• Patent Grant
• 2939371

• References
• Source

• Patent Number

  2,939,371

• Date Filed

  Not available

• Date Issued

  Tuesday, June 7, 1960
  64 years ago

• CPC

  • G03B1/48 - Gates or pressure devices
  • G03B17/04 - collapsible, foldable, or extensible
  • G03B27/581 - in copying cameras

• US Classifications

  • 396 - Photography
  • 355 - Photocopying