2535520

Information

• Patent Grant
• 2535520

• References
• Source

• Patent Number

  2,535,520

• Date Filed

  Not available

• Date Issued

  Tuesday, December 26, 1950
  74 years ago

• CPC

  • G10K7/04 - by an electric motor

• US Classifications

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