2151258

Information

• Patent Grant
• 2151258

• References
• Source

• Patent Number

  2,151,258

• Date Filed

  Not available

• Date Issued

  Tuesday, March 21, 1939
  85 years ago

• CPC

  • B21K1/68 - from round or profiled bars

• US Classifications

  • 470 - Threaded, headed fastener, or washer making: process and apparatus
  • 411 - Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener