1691879

Information

• Patent Grant
• 1691879

• References
• Source

• Patent Number

  1,691,879

• Date Filed

  Not available

• Date Issued

  Tuesday, November 13, 1928
  96 years ago

• CPC

  • B21K1/68 - from round or profiled bars

• US Classifications

  • 072 - Metal deforming
  • 076 - Metal tools and implements, making
  • 470 - Threaded, headed fastener, or washer making: process and apparatus