1386687

Information

• Patent Grant
• 1386687

• References
• Source

• Patent Number

  1,386,687

• Date Filed

  Not available

• Date Issued

  Tuesday, August 9, 1921
  103 years ago

• CPC

  • B23B51/00 - Tools for drilling machines
  • B23B2251/62 - Drilling tools having means to reinforce the shank
  • Y10S408/71 - Safety device
  • Y10T408/564 - Movable relative to Tool along tool-axis
  • Y10T408/96 - Miscellaneous

• US Classifications

  • 081 - Tools
  • 408 - Cutting by use of rotating axially moving tool