1409831

Information

• Patent Grant
• 1409831

• References
• Source

• Patent Number

  1,409,831

• Date Filed

  Not available

• Date Issued

  Tuesday, March 14, 1922
  102 years ago

• CPC

  • B66B3/004 - Mechanical devices that can be illuminated

• US Classifications

  • 116 - Signals and indicators