1384550

Information

• Patent Grant
• 1384550

• References
• Source

• Patent Number

  1,384,550

• Date Filed

  Not available

• Date Issued

  Tuesday, July 12, 1921
  103 years ago

• CPC

  • C23F1/06 - Sharpening files

• US Classifications

  • 076 - Metal tools and implements, making