3397611

Information

• Patent Grant
• 3397611

• References
• Source

• Patent Number

  3,397,611

• Date Filed

  Not available

• Date Issued

  Tuesday, August 20, 1968
  56 years ago

• CPC

  • G01J1/4219 - specially adapted for enlargers
  • G03B27/80 - in dependence upon automatic analysis of the original

• US Classifications

  • 355 - Photocopying
  • 250 - Radiant energy
  • 315 - Electric lamp and discharge devices: systems