2444675

Information

• Patent Grant
• 2444675

• References
• Source

• Patent Number

  2,444,675

• Date Filed

  Not available

• Date Issued

  Tuesday, July 6, 1948
  77 years ago

• CPC

  • G01J1/4223 - specially adapted for copy - or printing apparatus

• US Classifications

  • 355 - Photocopying
  • 250 - Radiant energy
  • 356 - Optics: measuring and testing
  • 430 - Radiation imagery chemistry: process, composition, or product thereof