2222546

Information

• Patent Grant
• 2222546

• References
• Source

• Patent Number

  2,222,546

• Date Filed

  Not available

• Date Issued

  Tuesday, November 19, 1940
  84 years ago

• CPC

  • F16B13/126 - fastened by inserting an unthreaded element
  • E01B9/16 - for wooden sleepers
  • F16B13/124 - fastened by inserting a threaded element

• US Classifications

  • 238 - Railways: surface track
  • 411 - Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener