1742974

Information

• Patent Grant
• 1742974

• References
• Source

• Patent Number

  1,742,974

• Date Filed

  Not available

• Date Issued

  Tuesday, January 7, 1930
  95 years ago

• CPC

  • E01B7/08 - Other constructions of tongues

• US Classifications

  • 246 - Railway switches and signals
  • 238 - Railways: surface track