1893688

Information

• Patent Grant
• 1893688

• References
• Source

• Patent Number

  1,893,688

• Date Filed

  Not available

• Date Issued

  Tuesday, January 10, 1933
  92 years ago

• CPC

  • B23P15/48 - threading tools
  • Y10T408/904 - with pitch-stabilizing ridge

• US Classifications

  • 072 - Metal deforming
  • 076 - Metal tools and implements, making
  • 408 - Cutting by use of rotating axially moving tool
  • 470 - Threaded, headed fastener, or washer making: process and apparatus
  • D15 - Machines not elsewhere specified