883539

Information

• Patent Grant
• 883539

• References
• Source

• Patent Number

  883,539

• Date Filed

  Not available

• Date Issued

  Tuesday, March 31, 1908
  116 years ago

• CPC

  • G09F11/28 - Electric control therefor
  • H03M1/00 - Analogue/digital conversion Digital/analogue conversion

• US Classifications

  • 340 - Communications: electrical