1960350

Information

• Patent Grant
• 1960350

• References
• Source

• Patent Number

  1,960,350

• Date Filed

  Not available

• Date Issued

  Tuesday, May 29, 1934
  90 years ago

• CPC

  • H04B3/11 - using pilot wire

• US Classifications

  • 318 - Electricity: motive power systems
  • 236 - Automatic temperature and humidity regulation
  • 324 - Electricity: measuring and testing
  • 340 - Communications: electrical