1252047

Information

• Patent Grant
• 1252047

• References
• Source

• Patent Number

  1,252,047

• Date Filed

  Not available

• Date Issued

  Tuesday, January 1, 1918
  107 years ago

• CPC

  • B61L13/045 - using separated rail contacts, pedals or similar

• US Classifications

  • 246 - Railway switches and signals