1253488

Information

• Patent Grant
• 1253488

• References
• Source

• Patent Number

  1,253,488

• Date Filed

  Not available

• Date Issued

  Tuesday, January 15, 1918
  107 years ago

• CPC

  • G10K9/10 - driven by mechanical means only
  • Y10S116/01 - Combined with diverse elements

• US Classifications

  • 116 - Signals and indicators