2778122

Information

• Patent Grant
• 2778122

• References
• Source

• Patent Number

  2,778,122

• Date Filed

  Not available

• Date Issued

  Tuesday, January 22, 1957
  69 years ago

• CPC

  • B23Q17/0938 - Cutting angles of drills

• US Classifications

  • 033 - Geometrical instruments