1307880

Information

• Patent Grant
• 1307880

• References
• Source

• Patent Number

  1,307,880

• Date Filed

  Not available

• Date Issued

  Tuesday, June 24, 1919
  105 years ago

• CPC

  • E01B3/20 - Sleeper construction for special purposes

• US Classifications

  • 238 - Railways: surface track