3402636

Information

• Patent Grant
• 3402636

• References
• Source

• Patent Number

  3,402,636

• Date Filed

  Not available

• Date Issued

  Tuesday, September 24, 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
  • 322 - Electricity: single generator systems