3447528

Information

• Patent Grant
• 3447528

• References
• Source

• Patent Number

  3,447,528

• Date Filed

  Not available

• Date Issued

  Tuesday, June 3, 1969
  55 years ago

• CPC

  • B28D5/021 - by drilling
  • B23B41/00 - Boring or drilling machines or devices specially adapted for particular work Accessories specially adapted therefor
  • Y10T408/375 - Coaxial tools

• US Classifications

  • 125 - Stone working
  • 408 - Cutting by use of rotating axially moving tool