2544686

Information

• Patent Grant
• 2544686

• References
• Source

• Patent Number

  2,544,686

• Date Filed

  Not available

• Date Issued

  Tuesday, March 13, 1951
  74 years ago

• CPC

  • G03B41/026 - combined with slit
  • G03B15/00 - Special procedures for taking photographs Apparatus therefor

• US Classifications

  • 396 - Photography
  • 356 - Optics: measuring and testing