3644032

Information

• Patent Grant
• 3644032

• References
• Source

• Patent Number

  3,644,032

• Date Filed

  Not available

• Date Issued

  Tuesday, February 22, 1972
  52 years ago

• CPC

  • G03B21/64 - Means for mounting individual pictures to be projected
  • G03B31/06 - in which sound track is associated with successively-shown still pictures
  • G06K19/08 - using markings of different kinds or more than one marking of the same kind in the same record carrier
  • Y10S40/906 - Sound

• US Classifications

  • 353 - Optics: image projectors
  • 040 - Card, picture, or sign exhibiting
  • 369 - Dynamic information storage or retrieval