2779543

Information

• Patent Grant
• 2779543

• References
• Source

• Patent Number

  2,779,543

• Date Filed

  Not available

• Date Issued

  Tuesday, January 29, 1957
  68 years ago

• CPC

  • E01B9/683 - layered or composite
  • E01B3/42 - combined with inserts of wood or other material

• US Classifications

  • 238 - Railways: surface track