3138903

Information

• Patent Grant
• 3138903

• References
• Source

• Patent Number

  3,138,903

• Date Filed

  Not available

• Date Issued

  Tuesday, June 30, 1964
  60 years ago

• CPC

  • B24B3/242 - of step drills
  • B24B3/022 - relief grinding of milling cutters

• US Classifications

  • 451 - Abrading
  • 142 - Wood turning