3400895

Information

• Patent Grant
• 3400895

• References
• Source

• Patent Number

  3,400,895

• Date Filed

  Not available

• Date Issued

  Tuesday, September 10, 1968
  56 years ago

• CPC

  • G11B15/58 - with vacuum column
  • H02P5/48 - by comparing mechanical values representing the speeds

• US Classifications

  • 242 - Winding, tensioning, or guiding
  • 250 - Radiant energy
  • 318 - Electricity: motive power systems
  • G9B - INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER