3649120

Information

• Patent Grant
• 3649120

• References
• Source

• Patent Number

  3,649,120

• Date Filed

  Not available

• Date Issued

  Tuesday, March 14, 1972
  53 years ago

• CPC

  • G03B27/722 - when the reproduction scale is changed
  • G03B27/80 - in dependence upon automatic analysis of the original

• US Classifications

  • 355 - Photocopying