15928

Information

• Patent Grant
• 15928

• References
• Source

• Patent Number

  15,928

• Date Filed

  Not available

• Date Issued

  Tuesday, October 21, 1856
  168 years ago

• CPC

  • B21G3/30 - by rolling

• US Classifications

  • 470 - Threaded, headed fastener, or washer making: process and apparatus