1569402

Information

• Patent Grant
• 1569402

• References
• Source

• Patent Number

  1,569,402

• Date Filed

  Not available

• Date Issued

  Tuesday, January 12, 1926
  99 years ago

• CPC

  • B24D7/18 - Wheels of special form
  • B24B19/16 - for grinding sharp-pointed workpieces
  • G11B3/56 - Sharpening

• US Classifications

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