2973140

Information

• Patent Grant
• 2973140

• References
• Source

• Patent Number

  2,973,140

• Date Filed

  Not available

• Date Issued

  Tuesday, February 28, 1961
  64 years ago

• CPC

  • G06G7/14 - for addition or subtraction
  • G06G7/163 - using a variable impedance controlled by one of the input signals, variable amplification or transfer function
  • G06G7/188 - using electromechanical elements

• US Classifications

  • 708 - Electrical computers: arithmetic processing and calculating
  • 338 - Electrical resistors