3784295

Information

• Patent Grant
• 3784295

• References
• Source

• Patent Number

  3,784,295

• Date Filed

  Not available

• Date Issued

  Tuesday, January 8, 1974
  52 years ago

• CPC

  • G03B23/00 - Devices for changing pictures in viewing apparatus or projectors
  • G03B1/42 - Guiding, framing, or constraining film in desired position relative to lens system
  • G03B21/46 - affording adjustment for framing

• US Classifications

  • 353 - Optics: image projectors