1323991

Information

• Patent Grant
• 1323991

• References
• Source

• Patent Number

  1,323,991

• Date Filed

  Not available

• Date Issued

  Tuesday, December 2, 1919
  105 years ago

• CPC

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

• US Classifications

  • 246 - Railway switches and signals