1647131

Information

• Patent Grant
• 1647131

• References
• Source

• Patent Number

  1,647,131

• Date Filed

  Not available

• Date Issued

  Tuesday, November 1, 1927
  97 years ago

• CPC

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

• US Classifications

  • 451 - Abrading