3478521

Information

• Patent Grant
• 3478521

• References
• Source

• Patent Number

  3,478,521

• Date Filed

  Not available

• Date Issued

  Tuesday, November 18, 1969
  55 years ago

• CPC

  • B61H7/02 - Scotch blocks, skids, or like track-engaging shoes
  • B61C5/00 - Locomotives or motor railcars with IC engines or gas turbines
  • B61C11/06 - tractive effort applied or supplied by aerodynamic force or fluid reaction
  • B61F9/00 - Rail vehicles characterised by means for preventing derailing
  • E01B25/00 - Tracks for special kinds of railways
  • E02D29/067 - Floating tunnels Submerged bridge-like tunnels

• US Classifications

  • 405 - Hydraulic and earth engineering