1438577

Information

• Patent Grant
• 1438577

• References
• Source

• Patent Number

  1,438,577

• Date Filed

  Not available

• Date Issued

  Tuesday, December 12, 1922
  102 years ago

• CPC

  • E01B9/58 - Fastening the rail in the chair

• US Classifications

  • 238 - Railways: surface track