2523970

Information

• Patent Grant
• 2523970

• References
• Source

• Patent Number

  2,523,970

• Date Filed

  Not available

• Date Issued

  Tuesday, September 26, 1950
  74 years ago

• CPC

  • G10K1/342 - electrically operated

• US Classifications

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