3833765

Information

• Patent Grant
• 3833765

• References
• Source

• Patent Number

  3,833,765

• Date Filed

  Not available

• Date Issued

  Tuesday, September 3, 1974
  50 years ago

• CPC

  • H03M11/16 - wherein the shift keys are operated after the operation of the multifunction keys
  • G06F3/0235 - using chord techniques

• US Classifications

  • 178 - Telegraphy
  • 341 - Coded data generation or conversion
  • 400 - Typewriting machines