1161816

Information

• Patent Grant
• 1161816

• References
• Source

• Patent Number

  1,161,816

• Date Filed

  Not available

• Date Issued

  Tuesday, November 23, 1915
  109 years ago

• CPC

  • C23F1/06 - Sharpening files

• US Classifications

  • 076 - Metal tools and implements, making
  • 451 - Abrading