3245309

Information

• Patent Grant
• 3245309

• References
• Source

• Patent Number

  3,245,309

• Date Filed

  Not available

• Date Issued

  Tuesday, April 12, 1966
  59 years ago

• CPC

  • G03B27/73 - Controlling exposure by variation of spectral composition
  • G03B27/735 - in dependence upon automatic analysis of the original
  • G03B27/74 - Positioning exposure meters in the apparatus

• US Classifications

  • 355 - Photocopying