630444

Information

• Patent Grant
• 630444

• References
• Source

• Patent Number

  630,444

• Date Filed

  Not available

• Date Issued

  Tuesday, August 8, 1899
  125 years ago

• CPC

  • E01B11/62 - Bridge chairs
  • Y10S411/996 - Transverse base-locking key

• US Classifications

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