3817539

Information

• Patent Grant
• 3817539

• References
• Source

• Patent Number

  3,817,539

• Date Filed

  Not available

• Date Issued

  Tuesday, June 18, 1974
  50 years ago

• CPC

  • C07D243/16 - substituted in position 5 by aryl radicals
  • G11B15/24 - Drive disengaging means
  • G11B15/68 - Automatic cassette changing arrangements; automatic tape changing arrangements
  • G11B25/06 - using web-form record carriers

• US Classifications

  • 360 - Dynamic magnetic information storage or retrieval