1836591

Information

• Patent Grant
• 1836591

• References
• Source

• Patent Number

  1,836,591

• Date Filed

  Not available

• Date Issued

  Tuesday, December 15, 1931
  93 years ago

• CPC

  • G11B3/58 - Cleaning record carriers or styli
  • Y10S29/097 - Cutter engaging cleaner

• US Classifications

  • 369 - Dynamic information storage or retrieval
  • 029 - Metal working