1398325

Information

• Patent Grant
• 1398325

• References
• Source

• Patent Number

  1,398,325

• Date Filed

  Not available

• Date Issued

  Tuesday, November 29, 1921
  103 years ago

• CPC

  • F16B39/26 - with spring washers fastened to the nut or bolt-head
  • Y10S411/96 - Friction
  • Y10S411/975 - Rotatable washer

• US Classifications

  • 411 - Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener