2450319

Information

• Patent Grant
• 2450319

• References
• Source

• Patent Number

  2,450,319

• Date Filed

  Not available

• Date Issued

  Tuesday, September 28, 1948
  76 years ago

• CPC

  • G01J1/4219 - specially adapted for enlargers

• US Classifications

  • 356 - Optics: measuring and testing
  • 250 - Radiant energy