3801199

Information

• Patent Grant
• 3801199

• References
• Source

• Patent Number

  3,801,199

• Date Filed

  Not available

• Date Issued

  Tuesday, April 2, 1974
  50 years ago

• CPC

  • G03B21/325 - Endless cassettes
  • G03B21/30 - adapted to collapse or fold

• US Classifications

  • 353 - Optics: image projectors