2503239

Information

• Patent Grant
• 2503239

• References
• Source

• Patent Number

  2,503,239

• Date Filed

  Not available

• Date Issued

  Tuesday, April 11, 1950
  74 years ago

• CPC

  • G03B23/042 - whereby the picture is not returned to the same stock after projection
  • Y10S353/01 - Slides stacked with surface to surface contact

• US Classifications

  • 353 - Optics: image projectors