3854670

Information

• Patent Grant
• 3854670

• References
• Source

• Patent Number

  3,854,670

• Date Filed

  Not available

• Date Issued

  Tuesday, December 17, 1974
  49 years ago

• CPC

  • B41J33/516 - using a reversing-feeler responsive to the tension of the ribbon
  • B41J33/22 - by gears or pulleys
  • Y10T74/19367 - Swinging carriage

• US Classifications

  • 400 - Typewriting machines
  • 074 - Machine element or mechanism
  • 242 - Winding, tensioning, or guiding