2163029

Information

• Patent Grant
• 2163029

• References
• Source

• Patent Number

  2,163,029

• Date Filed

  Not available

• Date Issued

  Tuesday, June 20, 1939
  85 years ago

• CPC

  • G03C5/12 - Cinematrographic processes of taking pictures or printing
  • G03B15/00 - Special procedures for taking photographs Apparatus therefor

• US Classifications

  • 352 - Optics: motion pictures
  • 355 - Photocopying
  • 356 - Optics: measuring and testing