3552320

Information

• Patent Grant
• 3552320

• References
• Source

• Patent Number

  3,552,320

• Date Filed

  Not available

• Date Issued

  Tuesday, January 5, 1971
  54 years ago

• CPC

  • E01B29/26 - the fastening means being spikes
  • E01B29/20 - Moving rails placed on installed sleepers in the plane track

• US Classifications

  • 104 - Railways