2389401

Information

• Patent Grant
• 2389401

• References
• Source

• Patent Number

  2,389,401

• Date Filed

  Not available

• Date Issued

  Tuesday, November 20, 1945
  79 years ago

• CPC

  • B24B3/22 - Relief cutting of taps or reamers

• US Classifications

  • 451 - Abrading