3690186

Information

• Patent Grant
• 3690186

• References
• Source

• Patent Number

  3,690,186

• Date Filed

  Not available

• Date Issued

  Tuesday, September 12, 1972
  52 years ago

• CPC

  • G03B23/02 - in which a picture is removed from a stock and returned to the same stock or another one Magazines therefor
  • G03B23/046 - Picture changing devices

• US Classifications

  • 353 - Optics: image projectors