1640846

Information

• Patent Grant
• 1640846

• References
• Source

• Patent Number

  1,640,846

• Date Filed

  Not available

• Date Issued

  Tuesday, August 30, 1927
  97 years ago

• CPC

  • E01B3/22 - Longitudinal sleepers Longitudinal sleepers integral or combined with tie-rods Combined longitudinal and transverse sleepers

• US Classifications

  • 238 - Railways: surface track