505844

Information

• Patent Grant
• 505844

• References
• Source

• Patent Number

  505,844

• Date Filed

  Not available

• Date Issued

  Tuesday, October 3, 1893
  131 years ago

• CPC

  • B23B51/0072 - Drills for making non-circular holes
  • Y10T408/35 - including plural rotating tools
  • Y10T408/905 - Having stepped cutting edges

• US Classifications

  • 408 - Cutting by use of rotating axially moving tool