3420604

Information

• Patent Grant
• 3420604

• References
• Source

• Patent Number

  3,420,604

• Date Filed

  Not available

• Date Issued

  Tuesday, January 7, 1969
  56 years ago

• CPC

  • G03B21/32 - Details specially adapted for motion-picture projection
  • G03B1/22 - Claws or pins engaging holes in the film
  • G03B21/323 - Cassettes
  • G11B15/34 - through non-skip drive means

• US Classifications

  • 352 - Optics: motion pictures
  • G9B - INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER