3845279

Information

• Patent Grant
• 3845279

• References
• Source

• Patent Number

  3,845,279

• Date Filed

  Not available

• Date Issued

  Tuesday, October 29, 1974
  50 years ago

• CPC

  • G09B11/08 - Teaching shorthand
  • G06K19/06037 - multi-dimensional coding
  • G06K2019/06262 - with target- or other orientation-indicating feature

• US Classifications

  • 235 - Registers