3888431

Information

• Patent Grant
• 3888431

• References
• Source

• Patent Number

  3,888,431

• Date Filed

  Not available

• Date Issued

  Tuesday, June 10, 1975
  49 years ago

• CPC

  • G11B23/093 - the reels or cores being coaxial
  • G11B23/087 - using two different reels or cores
  • Y10S242/914 - Special bearing or lubrication

• US Classifications

  • 242 - Winding, tensioning, or guiding
  • G9B - INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER