2521857

Information

• Patent Grant
• 2521857

• References
• Source

• Patent Number

  2,521,857

• Date Filed

  Not available

• Date Issued

  Tuesday, September 12, 1950
  74 years ago

• CPC

  • B60Q1/34 - for indicating change of drive direction
  • B60Q1/36 - using movable members

• US Classifications

  • 340 - Communications: electrical