2922351

Information

• Patent Grant
• 2922351

• References
• Source

• Patent Number

  2,922,351

• Date Filed

  Not available

• Date Issued

  Tuesday, January 26, 1960
  65 years ago

• CPC

  • G02B7/305 - using a scanner
  • G03B7/22 - in accordance with temperature or height

• US Classifications

  • 396 - Photography
  • 250 - Radiant energy
  • 355 - Photocopying
  • 359 - Optical: systems and elements