707840

Information

• Patent Grant
• 707840

• References
• Source

• Patent Number

  707,840

• Date Filed

  Not available

• Date Issued

  Tuesday, August 26, 1902
  122 years ago

• CPC

  • E01B27/18 - by introducing additional fresh material under the sleepers
  • Y10S425/121 - Projection

• US Classifications

  • 104 - Railways
  • 052 - Static structures
  • 404 - Road structure, process, or apparatus
  • 405 - Hydraulic and earth engineering
  • 425 - Plastic article or earthenware shaping or treating: apparatus