477676

Information

• Patent Grant
• 477676

• References
• Source

• Patent Number

  477,676

• Date Filed

  Not available

• Date Issued

  Tuesday, June 28, 1892
  132 years ago

• CPC

  • E01B7/16 - Jump-over frogs

• US Classifications

  • 246 - Railway switches and signals
  • 238 - Railways: surface track