1382392

Information

• Patent Grant
• 1382392

• References
• Source

• Patent Number

  1,382,392

• Date Filed

  Not available

• Date Issued

  Tuesday, June 21, 1921
  103 years ago

• CPC

  • B23G1/48 - for guiding the threading tools
  • B23G1/261 - Die and tap wrenches
  • B23G2210/08 - External threads
  • Y10T408/892 - with work-engaging structure detachable from cutting edge
  • Y10T408/904 - with pitch-stabilizing ridge

• US Classifications

  • 408 - Cutting by use of rotating axially moving tool
  • 470 - Threaded, headed fastener, or washer making: process and apparatus