2556174

Information

• Patent Grant
• 2556174

• References
• Source

• Patent Number

  2,556,174

• Date Filed

  Not available

• Date Issued

  Tuesday, June 12, 1951
  74 years ago

• CPC

  • B21H3/10 - twist-drills screw-taps
  • Y10T408/904 - with pitch-stabilizing ridge

• US Classifications

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