1763821

Information

• Patent Grant
• 1763821

• References
• Source

• Patent Number

  1,763,821

• Date Filed

  Not available

• Date Issued

  Tuesday, June 17, 1930
  94 years ago

• CPC

  • G07B13/045 - with indicating means on the outside of the vehicle

• US Classifications

  • 116 - Signals and indicators
  • 340 - Communications: electrical