1377491

Information

• Patent Grant
• 1377491

• References
• Source

• Patent Number

  1,377,491

• Date Filed

  Not available

• Date Issued

  Tuesday, May 10, 1921
  103 years ago

• CPC

  • B24B19/007 - for grinding buttons, nail heads, screw heads, bottle capsules or the like

• US Classifications

  • 079 - Button making