3488886

Information

• Patent Grant
• 3488886

• References
• Source

• Patent Number

  3,488,886

• Date Filed

  Not available

• Date Issued

  Tuesday, January 13, 1970
  55 years ago

• CPC

  • B24B19/04 - for fluting drill shanks
  • B24B3/245 - for simultaneously sharpening several drills; Supports therefor
  • B24B19/022 - for helicoidal grooves

• US Classifications

  • 451 - Abrading
  • 076 - Metal tools and implements, making