2857788

Information

• Patent Grant
• 2857788

• References
• Source

• Patent Number

  2,857,788

• Date Filed

  Not available

• Date Issued

  Tuesday, October 28, 1958
  66 years ago

• CPC

  • B23G9/001 - Working screws
  • Y10T408/173 - Responsive to work
  • Y10T408/3788 - Plural pairs of coaxial, opposed tools
  • Y10T408/50 - with product handling or receiving means
  • Y10T408/54 - Means to intermittently advance work

• US Classifications

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