1409498

Information

• Patent Grant
• 1409498

• References
• Source

• Patent Number

  1,409,498

• Date Filed

  Not available

• Date Issued

  Tuesday, March 14, 1922
  102 years ago

• CPC

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

• US Classifications

  • 029 - Metal working
  • 125 - Stone working
  • 264 - Plastic and nonmetallic article shaping or treating: processes
  • 369 - Dynamic information storage or retrieval
  • 451 - Abrading
  • 501 - Compositions: ceramic