3448214

Information

• Patent Grant
• 3448214

• References
• Source

• Patent Number

  3,448,214

• Date Filed

  Not available

• Date Issued

  Tuesday, June 3, 1969
  55 years ago

• CPC

  • G11B5/00 - Recording by magnetisation or demagnetisation of a record carrier Reproducing by magnetic means Record carriers therefor
  • G01D15/12 - Magnetic recording elements
  • G06C27/00 - Computing machines characterised by the structural interrelation of their functional units
  • G06F7/38 - Methods or arrangements for performing computations using exclusively denominational number representation
  • G06F15/00 - Digital computers in general Data processing equipment in general
  • G06F15/02 - manually operated with input through keyboard and computation using a built-in programme
  • G06K7/016 - Synchronisation of sensing process
  • G06K15/10 - by matrix printers
  • G11B5/004 - Recording on, or reproducing or erasing from, magnetic drums

• US Classifications

  • 178 - Telegraphy