2346238

Information

• Patent Grant
• 2346238

• References
• Source

• Patent Number

  2,346,238

• Date Filed

  Not available

• Date Issued

  Tuesday, April 11, 1944
  80 years ago

• CPC

  • H04Q9/04 - Arrangements for synchronous operation
  • H04Q9/08 - Calling by using continuous ac

• US Classifications

  • 340 - Communications: electrical
  • 333 - Wave transmission lines and networks
  • 341 - Coded data generation or conversion