1163567

Information

• Patent Grant
• 1163567

• References
• Source

• Patent Number

  1,163,567

• Date Filed

  Not available

• Date Issued

  Tuesday, December 7, 1915
  109 years ago

• CPC

  • G11B3/48 - Needles contains no documents
  • Y10T29/49577 - Phonograph component making

• US Classifications

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