1630253

Information

• Patent Grant
• 1630253

• References
• Source

• Patent Number

  1,630,253

• Date Filed

  Not available

• Date Issued

  Tuesday, May 31, 1927
  97 years ago

• CPC

  • B24B13/026 - the contact between tool and workpiece being a line

• US Classifications

  • 451 - Abrading