1855329

Information

• Patent Grant
• 1855329

• References
• Source

• Patent Number

  1,855,329

• Date Filed

  Not available

• Date Issued

  Tuesday, April 26, 1932
  93 years ago

• CPC

  • E01B9/16 - for wooden sleepers
  • F16B13/02 - in one piece with protrusion or ridges on the shaft
  • F16B13/126 - fastened by inserting an unthreaded element
  • Y10S411/922 - Nail, spike or tack having locking device

• US Classifications

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