3641568

Information

• Patent Grant
• 3641568

• References
• Source

• Patent Number

  3,641,568

• Date Filed

  Not available

• Date Issued

  Tuesday, February 8, 1972
  53 years ago

• CPC

  • H04L13/16 - of transmitters
  • G06C7/02 - Keyboards
  • H03K17/972 - having a plurality of control members

• US Classifications

  • 341 - Coded data generation or conversion
  • 178 - Telegraphy