1247310

Information

• Patent Grant
• 1247310

• References
• Source

• Patent Number

  1,247,310

• Date Filed

  Not available

• Date Issued

  Tuesday, November 20, 1917
  107 years ago

• CPC

  • E01B7/00 - Switches Crossings
  • B61L7/021 - Driving wheels or supports for traction wires

• US Classifications

  • 246 - Railway switches and signals