1669741

Information

• Patent Grant
• 1669741

• References
• Source

• Patent Number

  1,669,741

• Date Filed

  Not available

• Date Issued

  Tuesday, May 15, 1928
  96 years ago

• CPC

  • E01B7/08 - Other constructions of tongues
  • E01B2202/025 - Pure translation

• US Classifications

  • 246 - Railway switches and signals