2815216

Information

• Patent Grant
• 2815216

• References
• Source

• Patent Number

  2,815,216

• Date Filed

  Not available

• Date Issued

  Tuesday, December 3, 1957
  67 years ago

• CPC

  • G11B27/34 - Indicating arrangements
  • G11B23/04 - Magazines Cassettes for webs or filaments
  • Y10T29/49577 - Phonograph component making

• US Classifications

  • 369 - Dynamic information storage or retrieval
  • 029 - Metal working
  • 360 - Dynamic magnetic information storage or retrieval
  • G9B - INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER