3687397

Information

• Patent Grant
• 3687397

• References
• Source

• Patent Number

  3,687,397

• Date Filed

  Not available

• Date Issued

  Tuesday, August 29, 1972
  52 years ago

• CPC

  • G11B27/024 - on tapes
  • G06M3/021 - with drums type indicating means
  • G11B15/22 - Stopping means
  • G11B15/44 - Speed-changing arrangements Reversing arrangements Drive transfer means therefor
  • G11B27/34 - Indicating arrangements

• US Classifications

  • 242 - Winding, tensioning, or guiding
  • 200 - Electricity: circuit makers and breakers
  • 235 - Registers
  • 377 - Electrical pulse counters, pulse dividers, or shift registers: circuits and systems
  • G9B - INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER