491521

Information

• Patent Grant
• 491521

• References
• Source

• Patent Number

  491,521

• Date Filed

  Not available

• Date Issued

  Tuesday, February 14, 1893
  131 years ago

• CPC

  • B23Q1/70 - Stationary or movable members for carrying working-spindles for attachment of tools or work
  • Y10T409/309968 - Tailstock

• US Classifications

  • 409 - Gear cutting, milling, or planing
  • 451 - Abrading