1778478

Information

• Patent Grant
• 1778478

• References
• Source

• Patent Number

  1,778,478

• Date Filed

  Not available

• Date Issued

  Tuesday, October 14, 1930
  95 years ago

• CPC

  • B61L11/02 - Using mechanical interaction between vehicle and track

• US Classifications

  • 246 - Railway switches and signals