3631606

Information

• Patent Grant
• 3631606

• References
• Source

• Patent Number

  3,631,606

• Date Filed

  Not available

• Date Issued

  Tuesday, January 4, 1972
  53 years ago

• CPC

  • G09B5/02 - with visual presentation of the material to be studied
  • G06F3/0202 - Constructional details or processes of manufacture of the input device
  • G06F3/033 - Pointing devices displaced or positioned by the user
  • G05B2219/36127 - Menu, help menu for operator, messages

• US Classifications

  • 434 - Education and demonstration