3813668

Information

• Patent Grant
• 3813668

• References
• Source

• Patent Number

  3,813,668

• Date Filed

  Not available

• Date Issued

  Tuesday, May 28, 1974
  50 years ago

• CPC

  • G06M1/276 - using mechanically-actuated contacts
  • H01H19/003 - having a pushbutton actuator
  • H03M1/26 - with weighted coding, i.e. the weight given to a digit depends on the position of the digit within the block or code word

• US Classifications

  • 341 - Coded data generation or conversion
  • 200 - Electricity: circuit makers and breakers
  • 377 - Electrical pulse counters, pulse dividers, or shift registers: circuits and systems