2629557

Information

• Patent Grant
• 2629557

• References
• Source

• Patent Number

  2,629,557

• Date Filed

  Not available

• Date Issued

  Tuesday, February 24, 1953
  71 years ago

• CPC

  • E01B9/12 - Retaining or locking devices for spikes or screws

• US Classifications

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