2465442

Information

• Patent Grant
• 2465442

• References
• Source

• Patent Number

  2,465,442

• Date Filed

  Not available

• Date Issued

  Tuesday, March 29, 1949
  75 years ago

• CPC

  • B24B19/165 - Phonograph needles and the like

• US Classifications

  • 451 - Abrading
  • 369 - Dynamic information storage or retrieval