3067649

Information

• Patent Grant
• 3067649

• References
• Source

• Patent Number

  3,067,649

• Date Filed

  Not available

• Date Issued

  Tuesday, December 11, 1962
  62 years ago

• CPC

  • G01J1/4219 - specially adapted for enlargers

• US Classifications

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