3907200

Information

• Patent Grant
• 3907200

• References
• Source

• Patent Number

  3,907,200

• Date Filed

  Not available

• Date Issued

  Tuesday, September 23, 1975
  49 years ago

• CPC

  • E01B3/40 - Slabs Blocks Pot sleepers Fastening tie-rods to them
  • E01B1/004 - with prefabricated elements embedded in fresh concrete or asphalt
  • E01B2204/01 - Elastic layers other than rail-pads
  • E01B2204/09 - Ballastless systems
  • E01B2204/13 - Dowels for slabs, sleepers or rail-fixings

• US Classifications

  • 238 - Railways: surface track