3806270

Information

• Patent Grant
• 3806270

• References
• Source

• Patent Number

  3,806,270

• Date Filed

  Not available

• Date Issued

  Tuesday, April 23, 1974
  51 years ago

• CPC

  • B23B51/02 - Twist drills
  • B23B31/005 - Cylindrical shanks of tools
  • B23B2215/72 - Tubes, pipes
  • B23B2231/0252 - Shanks having a section of reduced diameter
  • B23B2251/247 - Drilling tools having a working portion at both ends of the shank
  • Y10S408/705 - Drilling deep holes
  • Y10T408/44 - with means to apply transient, fluent medium to work or product
  • Y10T408/907 - including detailed shank
  • Y10T408/9097 - Spiral channel

• US Classifications

  • 408 - Cutting by use of rotating axially moving tool