3250027

Information

• Patent Grant
• 3250027

• References
• Source

• Patent Number

  3,250,027

• Date Filed

  Not available

• Date Issued

  Tuesday, May 10, 1966
  58 years ago

• CPC

  • E01B27/022 - by devices moving on the track with or without spreading or levelling

• US Classifications

  • 037 - Excavating
  • 104 - Railways