3315893

Information

• Patent Grant
• 3315893

• References
• Source

• Patent Number

  3,315,893

• Date Filed

  Not available

• Date Issued

  Tuesday, April 25, 1967
  57 years ago

• CPC

  • E01B9/683 - layered or composite
  • B61L3/04 - controlling mechanically

• US Classifications

  • 238 - Railways: surface track