2447216

Information

• Patent Grant
• 2447216

• References
• Source

• Patent Number

  2,447,216

• Date Filed

  Not available

• Date Issued

  Tuesday, August 17, 1948
  76 years ago

• CPC

  • E01B27/18 - by introducing additional fresh material under the sleepers

• US Classifications

  • 104 - Railways
  • 294 - Handling: hand and hoist-line implements