3841459

Information

• Patent Grant
• 3841459

• References
• Source

• Patent Number

  3,841,459

• Date Filed

  Not available

• Date Issued

  Tuesday, October 15, 1974
  50 years ago

• CPC

  • B41J35/14 - for multicolour work for ensuring maximum life of ink ribbon for rendering ink-ribbon inoperative
  • B41J33/04 - mounted on moving carriages
  • B41J33/22 - by gears or pulleys

• US Classifications

  • 400 - Typewriting machines