3670981

Information

• Patent Grant
• 3670981

• References
• Source

• Patent Number

  3,670,981

• Date Filed

  Not available

• Date Issued

  Tuesday, June 20, 1972
  52 years ago

• CPC

  • B41J33/516 - using a reversing-feeler responsive to the tension of the ribbon
  • G11B15/44 - Speed-changing arrangements Reversing arrangements Drive transfer means therefor
  • Y10T74/19367 - Swinging carriage
  • Y10T74/19614 - Disconnecting means

• US Classifications

  • 242 - Winding, tensioning, or guiding
  • 074 - Machine element or mechanism
  • 400 - Typewriting machines
  • G9B - INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER