3421673

Information

• Patent Grant
• 3421673

• References
• Source

• Patent Number

  3,421,673

• Date Filed

  Not available

• Date Issued

  Tuesday, January 14, 1969
  55 years ago

• CPC

  • G11B15/34 - through non-skip drive means
  • G03B1/56 - Threading Loop forming
  • G03B21/43 - Driving mechanisms

• US Classifications

  • 226 - Advancing material of indeterminate length
  • 352 - Optics: motion pictures
  • G9B - INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER