3904287

Information

• Patent Grant
• 3904287

• References
• Source

• Patent Number

  3,904,287

• Date Filed

  Not available

• Date Issued

  Tuesday, September 9, 1975
  49 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