3530285

Information

• Patent Grant
• 3530285

• References
• Source

• Patent Number

  3,530,285

• Date Filed

  Not available

• Date Issued

  Tuesday, September 22, 1970
  54 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
  • G06F3/09 - Digital output to typewriters
  • 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
  • G11B5/004 - Recording on, or reproducing or erasing from, magnetic drums

• US Classifications

  • 708 - Electrical computers: arithmetic processing and calculating