1181474

Information

• Patent Grant
• 1181474

• References
• Source

• Patent Number

  1,181,474

• Date Filed

  Not available

• Date Issued

  Tuesday, May 2, 1916
  108 years ago

• CPC

  • G01B7/15 - being regularly spaced
  • A63H19/00 - Model railways

• US Classifications

  • 246 - Railway switches and signals